feeling down

Ah. I'm a ftm and I didn't think it was going to be this hard. At first it was easy, now everything is starting to hit me. I feel like I do everything alone. My fiancé works all day which is fine.. We need bills to be paid but at night I'm the one waking up every 2 hours to tend to the baby and I get absolutely no sleep. Then during the day I'm home alone having to take care of the baby and trying to keep the house clean. I'm breastfeeding which makes things 10x harder, I feel like I'm on a leash. My nipples are soooo sore and bruised so it makes it hard to feed my son I want to switch to formula but I would feel so guilty because I know breast milk is a lot better for him. Sometimes I just cry because I get so overwhelmed with everything. 😢