I used to do that alllllll the time until I was like 14. You have to just kind of stop caring and try not to have an opinion about what you want to happen. (Don't plan ahead, let other people choose, and just think that, whatever happens, something about it will be good or beneficial.) That way you won't be upset about whatever happens. That's what finally worked for me. :3
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"You gotta keep making decisions, even if they're wrong decisions, you know. If you don't make decisions, you're stuffed."
- Joe Simpson