How can i stop worrying about what other people think of me?

i worry so much about what people think of me,i try to analyze people s sentences when talking to make sure that nothing they said is somehow n't pinpointed to me or something i did,i also worry if someone is playing a song i,l try to check what the song is about and the story behind it.i always think people are laughing at me or talking about me,i had a tough high school year were people just talked about me when am right there and i would do nothing,but i have learned to stand up for myself but still i can't stop the suspicions behaviour.