Trouble being comfortable with sex

Hi! I have known I was bisexual for a long time and after leaving an abusive relationship with a man, I decided to further explore myself more. I have now been with my gf for over a year but we are not going well. Part of the problem is I have a lot of anxiety around initiating sex. She always wants me to try more and sometimes when I do feel like i’m trying, she claims it’s not and i just repeat the same things over again. Idk what else to do but we will probably end over this. She also claims i dont “touch her enough” and need to know my own worth more. those i am working on though…the sex thing is my main concern. I do not want to break up just to learn how to do that. i want to be with her. i had never really had intimacy with a woman before her so it is a little confusing. we are definitely kinky but i have trouble taking myself serious or even formulating ideas. it may just be the anxiety of it not working or not being good enough since i’ve tried before and it hasn’t worked. any suggestions for how to proceed? idk what else to do but i don’t want to break up.