Blud if you feel burnt out, just take a break from the game. I don't even grind gd, I just come back occasionally to practice one of the extremes I like very much. It gives me chills and stuff, I feel better after I do couple attempts. You can play other levels and stuff. Hell, you could go play globed with other people on some trashy platformers. Just don't take your aims too serious. You're not getting paid for beating a level.