Acting gave me the opportunity to do outrageous things. It allowed me to be sad, happy, angry and lustful, even if it was just vicariously.
I've probably gone a month or two without playing guitar, just because I've gotten so burnt on it touring all year or whatever.
The only things that haven't worked for me are when I've held back. There's no reason to sell an idea short. The only risk would be to not fulfill the dream.