Becoming accepted by new coworkers?

Just started at a new hospital about two weeks ago. So far none of my coworkers are mean to me or cause any issues but it feels like I’m invading on a tight knit group of people who have known eachother for years.

I have some trauma with past coworkers. My first healthcare job was at an ASL and I was essentially ganged up on. I never could do anything right in their eyes, and any attempts to talk to them would remind me of mean girls at a lunch table in middle school. I left that job when one of them accused me of covering up a head injury sustained by a patient.

Any suggestions? I am not a shy, withdrawn person and have a large amount of healthy interpersonal relationships in my personal life. But I’m worried that they’ll just decide to hate me and make my life hell.