Blow Job Fail

Totally feel like a bitch right now.... Me and my bf were making out last night and I gave him a handy and then he asked me if I would suck it. He Said I didn't have too if I didn't want too bc well I've never gave head a day in my life... I had no idea what I was in for... so I just went and did it I had no idea when to stop and i knew there was a spit or swallow option But I didn't know I had to keep going until he came.... 😔 so I stopped and ended up giving him blue balls and now I feel like the worst girlfriend in the world right now...       Totally hate my life right now......