How can I up my sex drive?

So I have 2 boys and ever since my first 4 years ago I have absolutely no desire to have sex I just to it to make hubby happy. I want to enjoy sex and actually be horny and not just do it for to keep him happy I want to do it for myself too. It’s gotten so boring cause I just lay there and take it because i don’t really care for sex... help me out please!! What can I take or what can I do to boost my sexdrive!