Follow your dream, brother. You have the skills, and you have the support of the woman you love. That's priceless.
You can always fall back on a dead end low paying job if there's no cereal in the cupboard, they're always there. By being in your own business, that'll open even more doors and the low end will come up closer to your expectations.
Do that, and don't ever doubt you'll succeed, and you will. It's how it works.