Anxiety

My bf and I have been together for a year and we’ve done it twice. This is also my first relationship and I’m 23, yeah I know it’s weird. This is all new to me and I get a bit anxious and overwhelmed whenever we try. I feel bad about it and I want to be more comfortable with myself. He usually handles it very well and if I need a second he’ll let me take the time I need and reassure me. I just wish I didn’t get so anxious about it.