I’m 16 I know a lot of people say u can’t have it until you are a adult, and I don’t want to be that teen who is self diagnosing because I’m a aware that there are many other problems that can cause these symptoms,my mental health worker says I have attachment issues but that could be down to my anxiety.

 I have blocked my best friends on social media because I was convinced they were all going to abandon me
  
If someone doesn’t answer my messages even if I know they are busy /working I will be convinced  they hate me and don’t like me anymore.

Everyone Always says they feel like they are walking on eggshells around me because of how angry I get.

I have intense mood swings all within an hour and not like normal teenage mood swings I go from super happy to the point where I’m overwhelmed with happiness and start making loads of impulsive decisions like getting loads of piercings done and dying my hair and After a week I’ve taken all the piercings out because I no longer like them and feel like I’m no longer the same person as when I first got them done.

I go from being that happy to crying and wanting to die all Within a couple of hours and it’s over super small stuff like If someone’s moved my stuff or said something the wrong way.

Also when I’m super happy and ecstatic I will start applying for all these jobs and colleges then an hour later regret it and not understand why I did that.
 
I know these can be signs of other things or due to my anxiety and depression but I was just wondering if bpd signs could start early so I can get the help I need:)