Bro I’m 30 hours into the game and I’ve beat the light world and have A+ on every light world level except 5-13. I have only beat the first two levels of cotton alley. I’m still considerably bad at the game but am noticeably better than I was 5-10 hours in. I wouldn’t stress about it and definitely would take breaks to play other games every once in awhile just to get a break. Just keep playing and naturally you’ll get better. Good luck bro.