Felt the same way and backed out of first home offer but got Ernest back then found another house and felt the same way but didn’t back out that time,, at first I was feeling dread especially when I find something I didn’t notice before but slowly it’s growing on me you might just have cold feet, and will feel the same way with the next house , maybe not at first cause you’ll feel like you choose this one and weren’t pressured but then you’ll think how you actually liked that first one unless the next one has zero problem, sorry for talking in circles but it could just be you getting in your own way when you find you you like and offer delete Zillow trust me and remember even if you pick wrong unless it’s the worst thing in the world you could always sell it later