I still leave bricklaying, plastering, windows, plumbing and some electrics to the pros
Sometimes it's more cost effective to leave it to the pros. I fitted my first set of DG myself in the 80's. I (reluctantly) decided 7 years ago it was time to replace them and priced up buying and fitting them myself, versus getting a local company in to supply and fit. The supply and fit was a quite similar price, so I went with that. Two days on site and the job was done, versus the 10 days it would likely take me and the struggle.