What do newcomers and students need to get started in this market?

I just saw a student post asking everyone for advice after losing $22 in two days. It’s the same with any financial market: you should build up your knowledge first and set aside a certain amount of money to get a feel for it. I think this person rushed into it a bit too quickly.

Those of you with lots of experience or who’ve been trading for years, could you share some advice?
$BTC
$ETH