Earning money online is not a piece of cake nor it is something you can not do if you put in the work. Just like any other offline business, it requires a great deal of effort and time before you really start making some serious cash.
There are countless ways to earn money online but it all comes down to what suits you the best.
Pick something you are amazingly good at and try finding a way to monetize your skill. For me, it has always been this easy.
A lot of people make this mistake of looking for shortcuts and quick-wins when they are just starting off, forgetting that everything that is worthwhile takes time (and a lot of effort too).
I wrote a comprehensive guide on this topic a week ago: https://www.proficientblogging.com/9-best-ways-to-earn-money-online/