Anxious to give a bj

Sam

So I’ve been with my boyfriend for a little over a year now and I still am anxious/nervous to give him a blowjob despite how many times he brings it up. I don’t know if I’m just freaked out or nervous to do it, or if it’s because my ex would threaten to leave if I didn’t do stuff with him or if I just am not totally comfortable with being really sexual yet. Any tips to help me get over it?