How can i worry and stress less?

Why is it that i worry about everything and how can i get over it? i mean, i got a lil cut/bruise/mark thing on my elbow, don't remember how i got it but i got it checked, dr saw it, thank god it's fine, and i told him that id worry about it so how do i get over it, and he told me ''stay positive, when you don't know about something, stay positive till you get it checked, if everything is fine, you can get over it'' and like i stated, thank god it's fine, but ill still think about it…

Soo, how do i get over all kinda worries etc, not just that one particular thing?

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Answer:
I have the same problem I worry about EVERYTHING from a tiny ache to what ifs. For example what if a tornado comes or what if this person dies or I start losing my hair. I just have to distract myself with something positive and think “what will be will” it's a good quote to live by. I think the reason partly that I do it is because I'm sort of a control freak and I feel if I’m not in control of the world around me it will fall apart.

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Answer:
Think about all the stuff you really stressed about that turned out ok in the end.

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Answer:
Hmmm… I would see a physicatrist if i was in your position. You seem to be troubled.

Good Luck in the future.