For two years I’ve been feeling like something is wrong with me and after a bunch of research (i apologize for self-diagnosing) I think I might have bpd (all the symptoms applied from how I feel). I’m aware that a professional psychologist or psychiatrist is to diagnose but this is not an option for me. 
Lately it’s been getting worse and worse and at this point I’m beginning to feel afraid that this will ruin my future. 
As I said, I can’t afford to go see a psychologist and I tried talking with my school consultant/psychologist, but afterwards I only felt worse. I can’t talk to my parents about my mental state nor can I talk to my friends (because I literally have only one friend and this person also happens to be my fp). 

What I really need to know is:
Is there another way to make it all better and easier to endure? Maybe someone has an advice that worked for them? I’m really desperate so please do comment if you have anything.