Married young, need advice

I married my husband at 21. He was 26. We were so happy and used to have fun. Now I'm just 22, barely a year married and it seems were struggling to find happiness. We have a beautiful son together (honeymoon baby). We constantly bicker. He doesn't make me feel special and it's starting to get to me. I feel like I have to fish for compliments. We never have alone time. We never even have sex, maybe two or three times a month. I just don't want to give up on marriage but I don't know how to fix it. I pray about it often. I love him but I feel like we're falling out of love. He is a GREAT father to our son and I'd never want to split the family up. I guess I need advice to make him feel like he wants me again? (Idk if I worded that right) :( I feel desperate coming to here but I don't feel comfortable talking about it to people I know. I don't want people to know I feel this way.