Working moms

Hey guys, I feel stuck at a major crossroads right now. I was offered a full time position at work (right now I only work 2 days a week) and accepted it yesterday. When does the mom guilt stop? I’m feeling so incredibly selfish and sad since I decided to accept the position even though I applied to it pretty much knowing that I would get it and I want the job. My daughter is currently being watched by her grandparents on my two work days, but now she’ll be in childcare. I’m so nervous about having her life in someone else’s hands. I feel like since I accepted the position I have been a nervous wreck and I keep having panic attack, but it’s already posted at work and our team had a meeting yesterday to make the announcement that I get the job. I don’t feel like I can go back on it now without looking like a complete failure. I feel so stuck and scared and selfish. I love working and I’m super excited about the job, but I’m nervous about all of the at home changes and less time with my daughter. Any advice? Any success stories about being a full time working mom?