Until you find the right direction /employer, keep as many of those parts of your "technical brain" active on almost anything, not necessarily (apparently) aviation connected, or costly to either party.
First Aid and Home Nursing
Chemistry of Colour Photography
Chartered Institute of Transport
Training to be a Primary School Secretary ! ( An organisation wanted to assess what might be required.)
Woodworking
Gas and Arc Welding...
These are just a few that I have done, to a certain, non professional level.