It's not impossible. But I think you have to have cash game capability for some consistency. I remember one player I met online and after he won about $110K in a
wsop event, he decided to turn pro. He played a few WPT games (yes $10K buy ins) and kept playing online. He said the caliber of competition was shocking. It was nothing like he expected. It was stressful and he lost most of what he won playing professionally. He did not play much cash. He was a MTT player and did not last long in his new career.
My brother tried playing cash games pro before he was ready and lost about $20K at high stakes. His career was over in weeks.
If you are going to try to grind, remember this. If what you enjoy so much as a hobby is what you would like to make your career, then you will eventually not love the game like you do today if you do make it a profitable career. It becomes work. In my mind, you still lose if you win.
So now to answer your question. No.
GL GL,
HOUDINI9