Blow job questions🍆

So my boyfriend (bless his heart) REALLY wants a blowjob. We've had sex few times and he ALWAYS eats me out. He loves to, so plus right?! He hints about blow jobs more and more now and I want to be able to do that for him. Even more so when I start my period. Since neither of us are down for period sex. How do I get over my dick in mouth uncomfortably and suck it up? (Pun not intended until I reread it😂) I've never given anyone a bj so I really don't have any experience either. Tips, tricks, and answers please!! ♥️😘