Good luck to you. You got this and will get through it.

Don't mind thise stupid people at school who just made fun of you. You are literally so much better than your ex boyfriend who tricked you. As for the necklace, hopefully you get it back. Try your best to ignore those people who are making you feel bad like making fun of you etc because like karma's gonna bite them back in the future. Also btw all actions you've decided to take are amazing so far.