How can I get rid of fungus gnats organically?

They are making me insane!! I have read about Hydrogen Peroxide on the top soil to kill larvae. So this will need to be repeated. I can do that for future flyers. Vinegar traps are not effective enough for my current patience level and have been tried. I am considering a flame thrower at this point. Does anyone have a successful experience to share? Many thanks in advance!!

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