Well, I do all that and it works just fine for me.
All my projects are 100% my own code down to the core. No frameworks, nothing. There might be some traces of jquery in there from when browsers were more unreliable. I don't even use that these days.
To get to know those frameworks, I built some projects with Symfony, Laravel, Django and some others. But it didn't stick. They are too aggressive in their "do it my way, don't worry what happens behind the scenes, let me do the magic" approach. I had the best impression of Django. That is the only one I might give another try.
All my projects are 100% my own code down to the core. No frameworks, nothing. There might be some traces of jquery in there from when browsers were more unreliable. I don't even use that these days.
To get to know those frameworks, I built some projects with Symfony, Laravel, Django and some others. But it didn't stick. They are too aggressive in their "do it my way, don't worry what happens behind the scenes, let me do the magic" approach. I had the best impression of Django. That is the only one I might give another try.