We cannot under estimate the cognitive aspect of cryptocurrency. There are different ways by which you can make your earnings through cryptocurrency. Lookout for the one of interest, learn it and do it well, like know not others. Some of the different aspects are as outlined:
1. Trading
2. ICO investment
3. Bounty
4. Airdrop
5. Mining
Although, there are other ways, but these five areas of specializations are very common.
You may try other aspects, but pick one and do it well like a professional.
Do not mind my grammatical errors please, i am only trying to help the newbies...
What you say is true. There are many ways to earn income and everyone has different choices and abilities. Choosing one of several options and then working with a professional is a wise move. My choice is to participate in a bounty program and do it with focus.