faces bevel in different directions

Question

the issues is the vertices locations are different so when I bevel it goes really bad

like this :

every face goes in it's own direction

so how can I change the vertices direction

also the faces have different directions

Answer 1

Turn on face orientation overlay:

These polygons should have different direction. To fix that, select all by pressing A and then press Shift+N

If it doesn't help, you have non-manifold geometry. In this case, flip faces manually by pressing Alt+N → Flip normals