Is it good or not good to wear distance glasses outside?

I'm 16 years old and have glasses with - 3.00 diopters. When can I wear them and when not so I wear them when I copy something from the board and when I watch TV, when I do something on the laptop but also when I go out.

What can I do that my eyes don't get worse?

And is it good to take it outside?

At -3.0 dptr. Always wear the glasses.

Your eyes are still growing. Therefore, you can't change anything about the fact that your eyesight can change further.

You can't influence the growth of any part of the body, including the eyes. Research has shown that if you are outdoors for at least 2 hours every day, myopia may progress more slowly.
With -3.0 you can no longer see sharply from 33cm. So you need distance glasses and where will you mainly look into the distance? You guessed it, outside. You already have the answer to your question. Who of your friends really doesn't need glasses because they're right-winged? You're just as right-sighted with glasses. Do you think that these friends voluntarily no longer want to see sharply from 33 cm, like you do without glasses? No matter what your friends do, they are always right-sighted and always see clearly. Put on your glasses, then like your friends you will always be right-sighted and always see clearly. The only difference is that you can see clearly up to 33cm without glasses, but everything is much bigger than your friends, they would need a magnifying glass.