Confidence initiating sex

My boyfriend and I don't have sex as often as I think either of us would like. We have only been together a few months but we are very honest with each other, so the other night he said to me he's sorry because he feels like he's disappointing me but it's just because he's nervous and doesn't know if I'm into it whenever we do anything. So we ended up having a big talk about it and figured out that basically I'm nervous about initiating anything and being outspoken during sex because I'm fairly new to it and he's bad at receiving any signals I send him and nervous about me enjoying it even when I say I am. So I was wondering if anyone had any tips on how to grow both you and your partners confidence around sex?? We are getting better and still have a good time but we are both just struggling a bit to find that confidence to really be bold and initiate it.