Amen Amen Amen. Use the experience you gained as an L/M and put it into something more secure.
From my experience its a young man's game; guess I was lucky, I started on the 74 at the age of 22. By the time I was 35, there wasn't much I hadn't done. At age 40, well... put what you learned over those years into showing 'em at head office what's what.
Don't forget, some of these people have never seen the inside of a freighter before. They'll pretend they know lots about it, having been on a company orientation course, read the manual and went for a visit :-)
You're 33 years old by your profile. Do something else. As has been pointed out, there are many highly experienced Loadmasters without work right now. My 20 years is "medium experience" to give you a guideline.