Regret how I designed the house!

This is our first house and my husband wanted me to design the whole thing. I’ve never done anything like that so it was really a challenge. We have a lot of furniture in the first floor now like a couch, two armchairs, and the breakfast table + chairs. I stumbled on a picture of someone’s house with the same layout and I feel horrible now. It looks perfect and if I’d seen it before I would’ve done it that way!! I just hate the way I designed it right now. I don’t know if I can still salvage it. We at least don’t have any decor yet but I’m just so stressed. It’s really hard trying to pick furniture especially online.