If eight hours a day of free time is the only thing separating you from your dream, then there must be SOME way to adjust the math of your life to get that for at least a period long enough to learn the instrument or train for a new job or both.

Reducing your monthly expenses by 1/12 means you could take a full month off and get a jump start on the training you want. You could also add overtime or a part time job and increase your income by 1/12 and then take two months off. Think of it like buying your freedom.