Plan b

On October 8th I took a plan b after a condom slip , I took it 1-2hrs after it happened. I haven’t been experiencing any symptoms of the pill besides almost passing out , but that’s it. I’m young (yes Ik I’m stupid) so I was wondering; due to the fact I’m young my body is still developing, and plan b is jammed packed with hormones is there a chance it maybe didn’t work on me?

Also is it ok for me not to experience the symptoms or will they kick in a few days?

What was your experience?