Juggling school, work and being wife and mother..how do I do it all?

I have been a stay at home mom of 3 boys for 10 years, and now that the boys are all in school I have decided to go back to school. I am going to school only part-time because I was just offered a job, part-time. The problem is, my husband works full-time, and also goes to school full-time and only having one vehicle between us, due to financial reasons, it's going to make things complicated. I have school on Mondays, Wednesdays, and Fridays during the day, and dance practices on Mondays, Tuesdays and Thursdays evenings. He works during the day (he is a cop and does have the benefit of driving the car home) and has school on Mondays and Wednesday evenings (the rest of his classes are online). The classes I have to have before I can take any others are not offered online. I haven't started working yet but once I do I really don't have the choice of when I get to work..If I could choose my hours this wouldn't be such a problem. If I could choose not to work it would also solve the problem..but since my coaching position is volunteer, I more or less have to work to pay for the gas to get back and forth to practices or stop coaching. I would really hate to give it up because I enjoy doing it. However, taking on the job and the school I don't want to feel like Im neglecting my family. And now the boys are getting to the age of school sports and we will have basketball and soccer practices and games to add to this chaos as well. Not to mention the CPR classes my husband teaches as well. How does one do it all?