Since I joined the crypto market. My gain is zero. I only have experiences and lessons. Does that have been called successful?

Maybe you still not doing your best to gain more. What do you mean you join crypto? Are you investing or trading or maybe joining some campaigns? In cryptocurrencies for me, you need to put most of your time here to understand the best that you can when it comes to cryptocurrencies. You must know also the consequences, negative and positive side of it. As of now, maybe you must give some of your time in cryptocurrencies to have an idea on how to gain more in this crypto-world.