Hi and welcome!

I suggest to look for the wallet of your choice first. We have that tutorial pinned on this section or go directly there: [General] Bitcoin Wallets - Which, what, why?

And when you're done, choose an exchange, coins/altcoins that you want to trade. Don't be afraid to fail from the beginning because you will learn a lot of things from that failure, it will be a worth it lesson for you though it may cost you some money.

And as a beginner, I looked for some crypto trading simulator that will help you to actually experience trading.
This what I have found: https://altcoinfantasy.com/
                                   https://coinmarketgame.com/

P.S I have no experience with these simulators.