Want more sex!

Me and my hubs have been together almost 15?years and still love each other! I mean we are always touching ,making eyes at each other all the time! This year we haven’t been having a lot of sex recently! We’ve been doing a app to help our sex live with him being mbira assertive, but after of 5 months, I realized it’s not gonna happen! He says he always tired! I don’t work , but I do have a home business! He gets hone from work and he does nothing except for the stuff he has to do for work! Literally he gets hone,sits on the couch. I cook dinner, clean, help our son with homework and more! We put our son to bed and we have to wait at least 30 minutes cause our room are next to each other! I bought an Alexa dot to play music for when we have sex! We haven’t had sex in over a month! We talk about having more sex but it never happens! Even on the weekends, my hubs will stay up and watch anime with our kid( which I want him to spend time with him) but then again he is so tired! He always says, I can’t help it if I’m tired! Then I feel bad! I don’t know what to do!