How do you do it?

I have 3 kids, a 2 month old, 2 year old and 7 year old. My husband is very supportive and I’m thinking of transferring to a university to start in the fall. I am really determined to finish school. I’m also going back to work at the end of June. I’m kind of terrified. Can I do this? Should I do this? I don’t just want to sit on my couch and wait. I need to do this for myself. I’m very dedicated to my children but I also want his for me. I can already hear people telling me I can’t. But I want to hear from those moms that do it everyday.