Switching to formula completely

I have decided to switch over to formula completely. My son is almost 3 months old. He never latched on properly. All this time I've been pumping and supplementing with formula. However I am tired and exhausted, I don't feel like I have taken care of myself the way I should. Just recently I've only been giving formula and just some breast milk in bottle. I Just started work and have tried pumping while at work and I only get 1 oz. I'm tired. I don't want to do it anymore. Seeing other mothers' milk in work fridge stresses me out ( we have mother's room for pumping). I've decided to just formula feed. I just want to make sure my baby will still grow up to be a healthy one 😔