Is it possible to make good money on cryptocurrenc?

Yes, and quite a lot. You can lose just as much: if you choose assets unsuccessfully, you will lose all your funds. Therefore, if you are new to crypto trading, try to collect as conservative a portfolio of cryptocurrencies as possible and choose reliable brokerage companies such as paxful vs bybit, you can see a review of them here https://tradersunion.com/brokers/crypto/view/bybit/bybit-vs-paxful/