Tools, tools, tools!
Literally all DIY and any form of creativity is a million times easier and produces better results if you have the right tools and materials.
The right tool for the job is 90% of the job, whether it's the right screwdriver, the right drill and drill bit, the right paintbrush, the right paint, etc.
We started out on our DIY journey nearly 30 years and back then, we scrimped on tools/materials and did the old "make do and mend" approach. I think the only power tool we had was a drill! In reality, we just made things hard for ourselves, jobs took longer than they needed, there was a lot of doing things twice (or more), and the end result was never perfect.
Over time, with the help of You Tube videos and buying stuff from Amazon and Wickes (easy to return if it ends up not right for the job), we're now pretty good. We have a garage and two sheds full of tools and all kinds of other materials, including a scaffolding tower, probably two dozen different power tools, several tool boxes of different tools, screws/fixings for every occasion, workbenches, several power saws, several hand saws, portable lighting rigs, etc. We basically do everything ourselves now, short of roof repairs and gas appliances. We have just chipped all the plaster off a wall, replaced the wooden frame, put new plasterboard on it, replastered it, refitted the electrics, and decorated it and it looks amazing. Not bad for a couple of white collar office workers!