Lalimacefolle, you don't realise how envious I am of you. Being a university student half way through my degree, I'm really just not good enough at my guitar for how old I am, it would take some serious luck for me to be able to commit to try to get money from my music.
When I first started playing the guitar a few years ago, I had dreams of forming some era-defining band that would be a combination of Miles Davis, John Coltrane, Franks Zappa, Bob Dylan, U2, and Pink Floyd. Now, though I would still love that, I realise that simply making enough money playing music/doing other stuff that still leaves me enough time to practise HEAPS would be wonderful also. Challenging, yes, but I can't htink of anything more fulfilling.
All I can say to you is, savour every day that your guitar is your work, because there are thousands of people who would quite happily replace you as soon as you stopped enjoying it!