Define and write down the conditions under which you'll enter a position. "Buy during uptrend" isn't specific enough. Something like this is much more specific and also testable: "Buy when price breaks above the upper trendline of a triangle pattern, where the triangle was preceded by an uptrend (at least one higher swing high and higher swing low before the triangle formed) on the two-minute chart in the first two hours of the trading day."

Every investor should try to establish what their goals and objectives are prior to investing. There isn’t necessarily a wrong objective, but it’s more important to understand your goals because that will help drive your decisions. For instance, if you plan to regularly trade in and out of stocks, you might be better off opening an IRA account so you don’t have to pay taxes on your trades. If you plan to be a long-term investor, taxes won’t be as important of a factor and you could hold your account in a taxable or tax-free account.
What are your financial goals for 10, 15, or 20 or more years down the line, and how do you plan on getting there? What is your level of risk tolerance, and what sort of investment approach will you take (value investing, dividend investing, or some combination of multiple strategies)? As you consciously outline your financial goals and the type of investor you want to be, you can experience success as a disciplined investor in the long run and stay on track with your plans.
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You can buy stock directly using a brokerage account or app. Other options exist for those who are employed—either a 401k plan or a 403b plan if you work for a non-profit. Then there's the IRA—be it a Traditional IRA, Roth IRA, Simple IRA, or SEP-IRA account. You can also set up a direct stock purchase plan or dividend reinvestment plan (DRIP). Each type of account has different tax implications.
Before making your first investment, take the time to learn the basics about the stock market and the individual securities composing the market. There is an old adage: It is not a stock market, but a market of stocks. Unless you are purchasing an exchange traded fund (ETF), your focus will be upon individual securities, rather than the market as a whole. There are few times when every stock moves in the same direction; even when the averages fall by 100 points or more, the securities of some companies will go higher in price.
By knowing how much capital you will need and the future point in time when you will need it, you can calculate how much you should invest and what kind of return on your investment will be needed to produce the desired result. To estimate how much capital you are likely to need for retirement or future college expenses, use one of the free financial calculators available over the Internet.
One constant principle of investing is that markets fluctuate. Stock prices will rise and fall for a number of reasons: the economy, investor sentiment, political uncertainty at home or abroad, energy or weather problems, or even corporate scandals. This means market performance isn’t always predictable. That is why diversification, or spreading the investments in your portfolio among different asset classes and across different sectors within each class, is such an important strategy. Diversification is a time-tested way to manage risk.
Then what? You might be new to investment but already wealthy, what do the super rich do to diversify? They use real estate in New York, London and the Cote d'Azure as a reserve currency. They change their country of residence to a tax haven, pursue naturalization through one of the EU citizenship by investment countries and then buy a sports franchise. Sorry, the sports franchise isn't actually an investment...
Some scammers will buy up a ton of some near-bankrupt, almost lifeless penny stock, then use lies and exaggerations to push the share price much higher. They might say the company is about to get some huge business deal with Google or their neighbor just struck gold in their similar mine, or they are going to land a major FDA clearance. That typically helps increase the value of the penny stock, which creates a profit for the promoter or scam artist. As the shares increase in value, they sell their holdings. These shares usually collapse back down to near-worthless status once the promoter has taken their profits and moved on. 
Diversify your portfolio with a healthy balance of low-risk, moderate-risk, and maybe some high-risk investments. Play it safe with the majority of your investments in tried and true stock options that always return a profit, and continue to invest in them. Now the profit margin may not be massive by any means with these, but it’s a safe bet that long-term investment will yield a healthy ROI. You should also invest in some moderate-risk options that show some promise of yielding a greater ROI percentage than the safer and more stable stock options. It is important to be careful and do some research on these investments, and try to get a sense of if it’s worth investing in. This is especially true for the high-risk investments.
Phrases like “earnings movers” and “intraday highs” don’t mean much to the average investor, and in many cases, they shouldn’t. If you’re in it for the long term — with, say, a portfolio of mutual funds geared toward retirement — you don’t need to worry about what these words mean, or about the flashes of red or green that cross the bottom of your TV screen. You can get by just fine without understanding the stock market much at all.
Whilst some day traders are tuned in every day from 09:30 to 16:30 EST (for the U.S stock market), many trade for just a 2-3 hour window instead. As a beginner especially this will prevent you making careless mistakes as your brain drops down a couple of gears when your concentration wanes. The hours you’ll want to focus your attention on are as follows:
You’ll come across an overwhelming amount of information as you screen potential business partners. But it’s easier to home in on the right stuff when wearing a “business buyer” hat. You want to know how this company operates, its place in the overall industry, its competitors, its long-term prospects and whether it brings something new to the portfolio of businesses you already own.