Have been into stocks for 10 years now. Full-time trading for 3 years. I use Fundamentals to check the company or security, Technicals to find the trend and who's been i/o for how much.
Have been up 50% year over year since going full time.
I recommend individual investments and collections of investments, which are known as portfolios along with Evaluation of current and historical data to gain better insight into the company’s prospects.