Am I overthinking this?

I've been approved for my first house. Nothing is finalized, but I want to make sure I'm not overthinking this and unnecessarily stressing myself out.

My issue is that the payments are a little more than I was expecting. The payment would take an entire check (I get paid bi-weekly). I have enough money saved so I can comfortably make them for the foreseeable future, but I don't want to put myself in a position where it leaves me stuck.

I know I can make these payments, but I don't know if it would be smart to.

Pros:

- Bar none, this is the nicest house I've come across since I started looking, over a year ago.

- It cuts my drive to work from 50-60 minutes to 15-20 minutes, which was the biggest reason I wanted the area it's in. This also gives me easier access to working overtime.

- Plenty of entertainment and places to eat around as 2 mall centers are every close by, as I currently live in the middle of nowhere, 15+ minutes away from the nearest town.

- I own everything I have, so aside from car insurance and utilities, this would be one of the only things I actually pay on.

- I have a nice camper that I currently live in. I can sell it to recoup some of, if not all of the money I used as a down payment on the house. It won't fit in the yard of the new place, so it would be hitting the market, anyway.

- My job has quarterly and annual bonuses, as well as voluntary overtime on Saturdays (time and a half), and double time on Sundays.

Cons:

- The payment, mainly.

- Working at least 1-2 Saturdays a month.

Again, I know for a fact that I can swing this, but that doesn't mean that I should. I would much rather be safe and secure than make a mistake on something this big.