How do I turn off my feelings?

Use your mind and imagine a rock. Imagine that rock to be you, and also try and imagine that rock getting much much colder, even freezing.
This goes to make one more solid in oneself, but also goes to making feeling much less for me. It may not work for you the way you want it to, but it did work for me to decrease the emotions.

stop caring and worrying.
at least tenporarily.

I take an antipsychotic, a mood stabilizer and an antidepressant and I feel nothing. So drugs do work.

Two lefts, one right, push red & green button, cut the yellow & orange wire.

Kidding aside, you can't turn off your natural human instincts & emotions.

You can't, simply put. Emotions are a part of being human and to turn them off is basically impossible. People spend years trying to do so however, they turn to everything and anything you can think of but it never works in the end. We need to feel our emotions, all of them.Unfortunately that means feeling unpleasant ones sometimes too, but feeling is healing. We need to feel the emotion, understand it, sit with it, and then we can move on from it. If we try and run from a specific emotion it will only bottle up and get worse and worse over time. For example if we are sad and try to ignore that sadness it will likely come out in other ways like in anger because there is no way to block it out.

You can’t

You don't.

What you do is learn sopcially acceptabelways to control them, and then yu grow up and leanr how to accept thatcom,plications causesd by ypui actions