Talking about mistakes WW i started with a trailer. I already had the trailer so i though i was being smart jumping into wfp for just about 2k.
I already had a ducato but that was always full with other biz. I would go sort 1st biz out and unload then go home for wc job. But then I had to go in garage and put all wc stuff on and then take it all off before I went in the evening to retrieve biz one.
So the idea was, i could come home, hitch up and go. The idea was a bad one, the trailer was too heavy, and I often had to disconnect it on drives and cul de sacs to turn round. The parking footprint needed to get it in any where was quite large so parking across other neighbours drive way frionts etc was a problem. The tank alone was 400l and then there was hose, di etc, and the weight of the trailer.
This is where I got to hate the physical work, especially lifting my hose in and out of the trailer every job.