Is it normal to want something so bad you dont know what to do?

When I hear the music I love I cant help to want to play it as well as my idols. I want to play the piano well, wail on my guitar all day and rhythm away on every instrument know to man! With dreaming this big I already know that to do well in something, especially an instrument, you have to practice all day everyday to achieve what I'm wanting and feel so passionate about. Ive already begun playing guitar for 2 years now but....I work full time and have an above average job in the architectural feild, its time to start having kids and getting married, getting close to 30. And to go back to school is kinda out of the question since Obama took away funding and I dont have the money to quit my job, pay a mortgage, and start a music major full time at a university or move to a special arts shcool. But is my feeling towards my dream normal? And is it normal to analyze it so much to know it will never happen and just be heart broken over it forever cause it cant tecnically happen?