Concerns about protruding teeth correction

From the side, it looks like a type with a protruding mouth, so I'm worried.

Has anyone tried orthodontic treatment?

I'm worried about how painful it will be, so it's hard to make a decision.

I'm just a cowardㅠㅠ

It also takes at least 3 years.

Among those who have tried, did anyone undergo protrusion correction?

Is there anyone who regrets?