Mortgage question

Hello myself 26M and wife 25F are looking to purchase a house around 780k with a VA home loan with about 25k down. This home is our dream home. It’s a new build with swimming pool, outdoor kitchen etc etc etc. seller to pay closing cost and estimating mortgage with taxes and insurance to be around 5200-5500. I made 160k last year and she made around 60k. I get a significant pay raise every year. So this year I’m on track to hit 200k. I have a student loan with 13k left on it & I could pay in full but I use it for a credit booster the minimum on it is 139 a month but I pay 1k a month. And she has a car with 23k left on it and pays 664 a month. We do live a pretty lavish lifestyle and our current mortgage is 4k. We have no kids pets anything. I will say we live a pretty lavish lifestyle we eat out a lot and shop and go to new countries for vacation every 2-3 months but since I’m a pilot I can use hotel points or fly standby which reduces the cost of that which we don’t plan on giving up traveling any time soon. I am hoping rates fall back down to mid 5s to low 5s before we lock in. I do have a decent savings account for emergency’s and my company automatically puts in 12% to my 401k and then I do 9% so I have a nice 401k as well that I don’t plan on touching. Our current union is in contract negotiations and if it’s as good as we are hoping I could be getting a minimum 20% pay increase overnight. I’m a pretty big worrier and come from a pretty poor family that could never “afford” something close to this. Just looking for advice or a little push I guess.