I found out how to become smart

No, that could actually lead to more depression! Insulting yourself just leads to more depression, probably make you schizophrenic, etc.
What ends up happening is that you feel worse than before. For me, whenever I hear 'voices in my head', it's also when I'm really sad. They generally pop up out of nowhere, and start giving me a little pep talk! I don't know what started this, but I'm not ending it anytime soon!

Reflecting instead of hating can show a huge difference. Instead of moping after SimCity 4 crashed, and all of my unsaved progress disappeared, I stood up, had a self-pep-talk, had a snack/drink, and felt better. I encourage you to do the same whenever something upsetting like that happens, it can really change a lot!

Kirbydogs said:

Reflecting instead of hating can show a huge difference. Instead of moping after SimCity 4 crashed, and all of my unsaved progress disappeared, I stood up, had a self-pep-talk, had a snack/drink, and felt better. I encourage you to do the same whenever something upsetting like that happens, it can really change a lot!

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But self reflecting often ends up with me insulting myself

That's not a way to become smart, that's a way to get banned.

If this is what you consider smart, I fear for your home life

Be a pro gamer and insult her when she makes a mistake.

/s