This is pretty much exactly what happened to me. I started building parts of django in Flask in my own weird way (probably complete with anti-patterns etcetera)

This is pretty much exactly what happened to me. I started building parts of django in Flask in my own weird way (probably complete with anti-patterns etcetera) so I thought why am I doing this when there is a team of highly skilled people dedicated to making another system to do exactly this? So now I use Django. And it is AWESOME.