Mining is no longer profitable for solo miner and if ever you plans to invest on mining, you will need literally tons of money to begin with because mining hardware is expensive and you have to consider other mining cost as well, like electricity.

For trading, I will advise you to learn what we call technical analysis (TA), so that you can get yourself some knowledge on how to play trading, otherwise you will be burn and loss in the trading game.

For beginners though, you might as well just buy bitcoin and then hold, simply as that.