Another option to distance learning are the short courses offered by Resource (lrtt), self study followed by a week or two week crammer with the exam at the end, can be carried out at the same time as full employment.
As Geezer has said, you will then require 5 years full time documented maintenance experience in an EASA Part 145 environment.
If you want turbine work look at employment in a Part 145 C rated engine shop, you do not require a Part 66 licence to be authorised to certify work in a C rated repair shop, this may be a route for you.