Why i can't swim??? :(

Hi steemian! hi my friends all over the worldI!!! want to talk to all my friends, why can not I swim when all my friends can do it, sometimes they taunt me because I can not swim.
I have experienced a frightening event when I try to learn to swim, therefore I am traumatized and never want to try again, so that's all I want to confide in, I hope my friends can give advice to me, I will be very thankful