scared of orgasiming

so ive been trying to for long time and i feel like im on the right path now. whenever I play with my clit i feel a lot of pressure on my lower back and almost cant feel my feet or legs. and it i get squirmish even when i do it myself. I get so scared mainly bcuz i can barely control myself just from feeling good that im scared of how it will feel when i actually orgasim... hope that makes sense 😂 and idk how to relax enough that i can actually keep doing it and finish 😂 idk im just scared 😔😂😂😂

ALSO so i know what makes me feel good, and ive tried to teach my partner what makes me feel good but then he ends up doing his own thing. idk how to guide him into doing what i like without making him feel bad! cuz ive tried already and i got tired of trying so just ended up saying “yeah thats good” so i feel bad!

so if you could help with both things that would be great!