I am willing to put in the grind

I currently play on Xbox one not the best but very funny and could probably make some funny content creation.
I used to Play on Pc and the highest rank I got to was diamond 3 or elite I believe but I had to get rid of my pc now I’m saving up for a new one. I am willing to put in the grind to be one the best if not the best player I can truly become- PSR Justin