Hi amcl1986,
your best bet is to apply as a fitter, maybe some airline may put you through your modules to become b1 or b2, if not you can do the modules off your own back while gettin and recording your experience. Your in the same boat as me really, apprenticeships are the way forward tho.
B1 is mechanical and B2 is avionics depends which trade you prefer.
Good luck anyway