But the best advice I have for you is to just hold your bitcoin and leave it for a long period of time, the price will increase and you will make money from it.
I agree.
Staking is the only way to earn passive income in cryptocurrency, I think. Trading is also a good one but it's so risky for a newbie. Hodling is the most famous one since all you have to do it to wait after you bought when the price dumped. Profits in staking is not that big compare to trading but a profit is still a profit. You could also look for an actual job or be a freelancer while you're holding your cryptocurrency, the more income, the better.