Buying a house

We are trying to buy a house and I am stressing about what the increased monthly costs will be. I’ve done two models on it, but I’m having a hard time believing the second model because it’s feeling like wishful thinking to me. Any thoughts?

C: budget for buying house is $X per month
T: we’ll never be able to make that work. We’re going to be so miserable if we’re spending that much
F: defeated anxious
A: shut down, give up, don’t want to talk about it, don’t look at options, obsess over it
R: make myself miserable?

C: monthly budget is $X
T: I’m excited to figure out how to solve this problem and that it will push me past my current status
F: open trusting
A: keep moving forward, leave room for creativity, try new things
R: I find a way to make it work