I'm DIYMax. Retired the day we got full PP.
If you don't require a formal qualification to get the job done , I'm on it. Not from choice. Or ability. Or bent. Just financial necessity. We're in a Development Zone so trades are like hens teeth.
Which means 10 years in so far and still lots to do. MVHR second fit, Part P, Air Test, lobotomy.
Learnt a fair bit mind ....