This is chaotic and all over the place but here it goes

I'm about 6mpp and I think I'm on the verge of losing my supply. My son had issues latching when he was born to the point I had a breakdown because I was worried I couldn't feed him enough(my milk hadn't come in.) We had issues for almost two months until a pediatric dentist recognized and clipped his upper lip tie and one of the worst tongue ties he had ever seen. When my milk came in I pumped almost 15oz and after that it went down hill now we can barely get an oz combined. We were still having some latching issues but we were so busy and I was finishing up my college degree I would pass on a pump here or there. My husband never really supported me trying to pump because it was always more convenient to use formula or to nurse him. For almost 4 months we were living in a bed room with inlaws where I had to hide in our cramped bedroom just to feed. It felt weird washing pump parts in the kitchen and my husband always came home from work exhausted and I was stuck with the baby. Since then we have gone from bedroom to camper to our own house and husband barely ever spends time with our son or if the baby needs something he calls me. It feels like I'm babysitting my husband watching our baby instead of getting anything done. We have gotten to almost exclusively formula but I want my supply back. Husband gets frustrated if I try to pump and I can't hold baby while pumping or pump while nursing. Husband also either gets worked up and upset if I ever ask him to do something or never does anything to help with my pumping(ex:washing parts if he sees them dirty) I am a sahm while keeping the house in order and might be working from home soon. I have enough on my plate and never have enough time in the day to carve out a pump session. We don't have enough extra funds to purchase a wearable pump either.

How can I get my supply back or talk to my husband about this? I've always dreamed of nursing my baby and being able to provide for him but I can't if I don't have the environment to support my journey to get my milk back whether through pumping or nursing.