Powder coated 45 acp seating crooked

Hi! I am a novice reloader who is trying to start back up after 3 years and I feel like I remember nothing and I am beginning to get frustrated. I keep shaving bullets from too small of a flare. And then I have seemingly over flared all of my casings or something. Now my bullets will not always sit flat every single time.

Did I really just over flare? Or is there something else I’m probably doing wrong?

The other problem that I am having is that the variances in case length are causing my casings to be either over crimped or under crimped. This is an issue I don’t recall a few years ago. I just want functional safe ammo