Its tricky - but important - to not feel that way. Sometimes, its just plainly experience... There were times, working at GW Chinook, where I could admit to not only painting for longer than my Coworkers were alive... But occasionally, I had 4 kids in the store playing a game, and I'd been painting for longer than all 4 of them had been alive combined...
And even then, I can't bring a torch to Vykes at the moment... But that's not discouragement...
The single biggest thing to remember with your paint jobs is, 90% of the time, they're viewed at more than an arms length on a tabletop... So do your critical judging BY holdng them at arms length...
Even when you're doing Rules Videos... The Resolution on the camera is generally low enough that a really brilliant paint scheme still won't show through - and honestly, it doesn't have to...
The small size and the distance is why we are seeing a lot of successful Sharpie+Wash paint schemes (although personally, they chill my spine) - the smaller scale is helped by the way our eyes and brain work at picking up colours and shades at a distance...