As a newbie I would advise you not buy company stocks, much too risky. ETF's are far less risky.
If you plan to trade short term as it sounds like from your post. Put half your money in SPY this is the ETF for the S&P 500, buy it and hold it forever. Then try short term trading the other half, and see which half of your account does better. Odds are your S&P fund will do better. Trading in and out of stocks is very risky and the shorter term you trade the more likely you are to lose all your money. Don't even think of day trading,
Final note, I recently read an article that said had Donald Trump in 1987 liquidated his real estate holdings ( about 500 million dollars) and simply invested it in the SPY today that 500 million would be worth 14 billion.
Good luck and see my thread for more advise