Paranoid personality disorder

I have clinical depression, mixed anxiety, PTSD and panic disorder (all diagnosed) 

However I think I have PPD or BPD (my mum has long term depression and bpd) 

I don’t know how to go about this, because what makes me feel most depressed is feeling mistrust and like people secretly hate me.

These are some symptoms-

• Hypersensitivity 
• mistrust
• Suspicious of others
• Hyper vigilance (always assessing people/places, needing to be able to escape)
• Dissociation 
• Irritation/anger issues
• Thinking everyone’s out to get me
• Thinking people aren’t who they say they are
• “Demonising” people (as my foster carer put it lol- I never thought I did but ever since she said it I kinda reflected and yeah)
• Mood swings
• Quickly become hostile/defensive 
• Trouble relaxing 
• Thinking I’m being watched/ surveillanced
• Thinking people are secretly laughing or talking about me

pls advice? x