One thing I thought of is trying to balance the hours required for school and the time required for a divorce. The school I went to had very strict attendance requirements. It would have been very difficult to keep in good standing with school and the paperwork, meetings and court dates for my divorce. My divorce was difficult though. Just something to look into.
Since you can afford the tuition, this would be an amazing gift to yourself.
Obviously, ask the questions everyone gave you help with upthread, but this could be a great way to move yourself forward, personally and professionally.
As a Culinary school graduate I say GO FOR IT! Seriously it was so much fun, I often find myself missing it. It sounds like it would be a perfect fit for you.