Breastfeeding vs Formula

At the beginning of my pregnancy I had all the intensions of breastfeeding but as I get closer to delivering I’m considering doing formula after the initial colostrum. pregnancy has been a lot harder then I thought it would be (this is my first) and I know the struggle doesn’t end once she is born there is a lot of recovering and breastfeeding is a lot to take on and knowing I will always be the one to have to feed her so there won’t be much of a break just seems overwhelming. Any advice or experience from moms who have maybe done both?