Oh yes, abused garden machinery, makes the abuse suffered by cars look like a minor problem! I find a typical statement made is "this or that machine broke" - No, it didn't. You ran over a large rock or didn't stop the engine before pushing it across the road and over a couple of kerbs, which has resulted in the crankshaft now being bent! Or, "The hedge cutter is blunt". Oh yes? and it's got nothing to do with the way I saw you sticking the end of it into the ground at the bottom of that hedge yesterday or the wire netting buried in the hedge which you cut through with the machine?
As you'll know if you're familiar with some of my posts, I moved away from involvement with the garage trade aged 50 and spent the last 15 years of my working life in horticulture/garden maintenance. Because of my background I found looking after the machinery relatively simple compared to trying to "sort" cars so took over the maintenance and repair of all our machines. This resulted in me becoming someone who was known locally as a chap who "knows about" lawnmowers, leaf blowers, strimmers etc and consequently a small number of neighbours, relatives and friends would, infrequently, come to my door in desperation after the workshop had declared they either couldn't repair their machine or declared it beyond economic repair. You can imagine what I ended up trying to repair were some pretty "sorry" examples of the genre. Very many of these had reached this stage because absolutely no maintenance had been done, sometimes for years, commonly lack of oil changes on 4 stroke petrol mowers was a big part of it - the owner having just topped it up from time to time, often with entirely unsuitable spec oil. It never fails to astonish me how these simple wee engines continue to struggle on despite the most terrible neglect. One thing I have noticed of late is that with many now being electrically powered, they seem to be lasting longer before failing, but when they do people are tending to just scrap them rather than repair. In fact, it's been a couple of years now since I've looked at anything other than a machine used in the extended family - which considering my decrepit physical condition is probably a blessing!
Oh, and by the way, hang on in there. Retirement is pretty good. But, as with everything, you only get out of it what you put in.