How to feel more confident during sex?

so I usually have sex a few times a week. and I'll usually start by giving him a blowjob, and then he'll go down on me. he pulls me on top of him and I know its like a good position that i want to enjoy cause you can usually take control and stuff but I cant cause I dont feel pretty enough and I dont want him to see my stomach and boobs jiggiling everywhere and I dont want him looking up at me 😬 he always says "I always have to do the work" like i wanna really enjoy it too but I dont feel confident enough. Also eye contact, It makes me feel weird to look at him but then again I think its hot. does eye contact make sex better or worse?