Dream About Sinking In A Pool

i can’t tell if this was a dream or real life and i’ve always told this story as it was real life, but no one remembers, so i assume it was a dream. i was at my stepdads community pool with my mom, stepdad, and my stepdads family. i remember i was young in this dream, so my mom was taking off my floaters because we were about to leave, and she was talking to this younger kid that seemed three about his shark toy or whatever. while my mom wasn’t looking, i got this feeling to jump in so i did. i was sinking to the bottom and i was panicking because i couldn’t swim and somehow i managed to get to the top and get up. everyone in the pool was staring at me afterwards when i was coughing out water and my mom wa spitting my back to help me. and it stopped there