If you dont want a degree and are interested in trading stocks or investing, check out courses on places like Udemy!
Learning about individual stocks is a very risky business and requires a lot of time, commitment and years of research and understanding. The safest and most effective way to invest is through ETF's, Mutual Funds and Index Funds. The returns on those will allow you sleep at night and not have to track every single individual stock through it's ups and downs. If you do want to learn about individual stocks, find a successful broker or investor that has been through the ups and downs of the market to understand it completely. My recommendation is to have a minimum of $25K before you start buying individual stocks to make an actual dent in profit. But with mutual funds, index funds or etf's you can start buying now with as little as $1000.00. Every month keep buying more and more. The first $100K is the hardest, but the power of compounding is the most proven way to become wealthy. Good luck.
I would shy away from companies which are a cash only companies; those that are involved in CBD types of medicine, the current marijuana legal sales. I think, their yearly income reporting may not be so valid, since there is no legitimate paper trail, or even accurate bank trails.
When you follow companies that that have increased the return to their investments and are on a trajectory, those are the ones to invest. Basically the companies that are needed by consumers, Pharmacy, oil, gas, housing, building, food industry, private education companies on the stock market, entertainment, (Netflix a successful company that rose exponentially during this year long pandemic.)
Also I would invest today in renewable energy companies, those that produce batteries, this will be a boom in the net few years I believe similar to the cell phone and even Amazon. Our planet is in dire need to alter the way gasses are produced, released into the atmosphere, and continue to create individual health problems, and major global weather disasters. Investing in companies that promote renewable energy is the only way to end this problem that has been caused by major oil and gas companies in the last 100 years.
There are many resources for you to learn about stocks and one thing I like to do every day is read stock news and articles online. It''s also helpful to talk to investors, traders or people who work in the profession, but learning online is the most flexible way to educate yourself. You can search up tons of information on Google Finance, Reddit, Yahoo Finance, Reuters, Morningstar, Jim Cramer, Youtube, etc. Having said that, It really takes years to get a deeper understanding of the stock market, how to trade, and how consumer sentiments, the local and global economy and policies impact the stock market as well as individual company stocks. The basic thing to learn is how a company is valued and the main metrics investors look at, like EPS, etc. Then at some point you may want to trade, but start off small. Investing is very difficult and you may lose a lot before you see a gain. Tread carefully and do all the homework beforehand. Good luck!
There are a lot of resources available to help kick start (and validate) your interest in stocks. I would suggest looking at some of the resources available through brokerage firms (E*Trade, Fidelity, and Charles Schwab all have great courses and sessions for free which will show the basics in the stock market). This will give you a basic understanding of how the market works.
Then, taking that information and learning the broader area of business and finance will give you the history and basics of the market and how it works the way it does. From there, you will have a lot of options on where to go (trader, financial advisor, modeler, economist, etc...).
Best of luck