Need some encouragement

I’m feeling really overwhelmed. My baby is 2 months old and has only had breastmilk. I am exhausted! This is my 3rd child and the first one that I have breastfed. He is thriving and has lots of chunky roles. I work full time so I pump during the day. I have pretty much NO freezer stash. I pump exactly what he needs and put it in the fridge for the next day. I have tried to increase my supply but nothing. My only option is to get up in the middle of the night and pump in between feedings so that I can build a freezer stash. I am just too damn tired. So I sleep instead and then I spend the entire next day upset that I didn’t get up. I am fed up with the pump, the parts and the cleaning. I think I am even more exhausted because I am stressing about it all. I just want to throw in the towel and give him formula. But of course I don’t actually want that. I want him to have what’s best. He is thriving and I love nursing him. I’m just overwhelmed and exhausted. I just want to cry and burn my pump. How am I supposed to do this for a year if I’m struggling so much at 2 months. Sorry but I really needed to vent. No one in my family ever breastfed so even though they support me, they have no clue of what goes into it. So it’s hard to vent to my husband or family because they just don’t get it.