There are different works which you can do to get money this 2021 depending on the kind of work you are into or depending on the method that pays you.
There are lot's of people that are into daily trading and is working for them they are making there money there but me personally I don't really like daily trading it those not work for me.
The best way I believe you can use to make money this year is by investment and bounty campaign, me personally the best way I believe I will make money with this year is by investing, there are lots of coins that are still very low for now that you can buy and hold I believe in the next few months you will be in profit already, even bitcoin self the price is still low for now you can still buy and hold for few months and see how you will be in profit. But before buying any coin always make sure you do your research first so that you won't end up buying the wrong coin.
I think this year will be the crypto currency year. It depends on you, what coin will you invest. You can invest in bitcoin, doge , Ethereum and other. I think this way to earn money in 2021. Not only in bitcoin but I see altcoins already starting to pump.
The bullish is happening now and will continue until the end of this year. But we will see several corrections.
No problem , hold and buy more are the best way when correction happens.