My mil didn't succeed in breastfeeding my sil, and so decided not try with my dh, but went straight to formula. She couldn't understand my determination to breastfeed my dd after I had had such difficulty with ds and had ended up mix-feeding him. How you choose to feed your baby is entirely up to you, different people feel differently about their bodies and relationships, and you have to feel good with yourself, so ultimately it's your decision.
I admit to being pro-breastfeeding myself, but, having experienced the other side of the coin when it doesn't go well and is distressing, I am also very pro-mum's-choice as well.
I fed both of my children to routines, was never constantly on call to them after the first couple of weeks and never leaked after the first month or so (and even then only a little and only during night-feeds or first thing in the morning). If I needed to be away from the baby over a feed then I left a bottle of formula - I never expressed after the first month or so. It doesn't need to be as horrible as you anticipate. But, ultimately it is your decision and no-body has the right to try to 'force' you into breastfeeding.
We will support you here, whatever you choose to do.