Boyfriend Sex advice

I’m new to asking questions so I’m sorry if I’m not very good at asking, however, I am new at sex and I just begun this amazing relationship with someone I really like any who sorry I got off topic. So we’ve only had sex three time and all have been protected and I’ve really tried umm... to give him a blow job but I keep getting nervous and I really wanna please him cause I know he doesn’t want to ask but he always pleases me but I tried and kept failing any pointers. I also wanna actually know how to do more things that will turn him on, things that guys find usually hot. I would be grateful for any tips and advice.😅