I am in a similar position as david927, working in a good environment, good colleagues, good pay.

I actually have a degree in molecular biology and have transitioned to computer science and an engineering degree, which I think was the right choice for me. I thoroughly enjoy being an engineer but lately I can't help but being drawn towards the arts - music in my case. I have been eye-balling a music academy that offers a state accredited professional guitar degree. According to their information material, their alums are quite sought after because of the hands-on approach, studio skills, etc. I looked at the requirements for admission and I am pretty sure I can get admitted with some preparation, having played on and off for quite a few years now.

The catch here is that music industry is actual shit to work in, as I have heard on multiple occasions. And I cannot afford making less than a certain amount of $$ because I have to/want to provide for my wife and two kids.

On the other hand I started having the (completely irrational) fear of being a complete failure if I don't become a professional guitarist.