Get yourself over to
http://www.qcm.ch/uploads/media/QCM-...v03-150715.pdf download and read Part 66 & appendix
it will answer most of your questions
You will need to get a relevant job in a Part 145, apply to everybody and be prepared to be turned away.
modules completed may help your application but don't bank on it
traditional way in is an apprenticeship, some offer improver routes but that's based on an existing skill base