I am an artist myself actually and plan to release my work once the crypto industry matures some more as well. My advice is just to focus on being a good artist. As an MC, you have to develop your self. Become a person that people want to listen to, you need to have a message, beyond the message you need to have heart and passion. Find what inspires you, discover your artistic process. Do not understatement the effort required to be a great MC. You have to devote yourself to it, for life, you have to live Hiphop, be Hiphop. Practice just like learning an instrument, you have to practice for many years to be good and gain skill while at the same time having the heart, message and inspiration.
Develop yourself as an artist first instead of trying to live off your art straight away, that can have the tendency to corrupt the art, in other words, find other sources of income, while still allowing yourself the time to develop yourself.
Study music, learn what real music is, the history of music, many genres. Be real, express yourself.
I have sent you a PM anyway, I can reveal more about myself in private that way. It was nice sharing this message with everyone though.