Accepted an offer (A). Got a better offer (B). Need to tell company A I'm not working for them. Company A was very cool, but is what it is. Regardless I feel bad because if a company gave me an offer letter and canceled a week before it started, it'd be pretty shity. Feel like I'm putting that same energy out there. I got burned on my last job (literally created the company and got laid off lol) and I'm really trying to put myself as priority now.