Aww don't feel guilty lah, going back to work doesn't make you a bad mum at all, plenty of us in the group did the same at 10 months and our babies turned out fine! It's actually healthy for them to socialise with caregivers, and honestly you'll probably feel better having something for yourself jugak. The first few weeks might be emotional for both of you, but babies adapt quickly, and what matters is the quality time you spend together when you're home, that's when they feel your love most. Just make sure your caregiver or childcare is someone you trust, and give yourself grace la if it feels hard in the beginning, it's normal!