Sure it's okay that you are here-- we are glad to *meet you! Welcome!
No need for an official diagnosis. The focus around here is on recovery from mental illness-- mostly BPD, but a diagnosis is not required. We just try to help each other find better ways of coping; to find healthy, happy living. The tool section on your upper left screen is a great place to begin.
As for the depression and suicidal thoughts.......many of us have been in your shoes. For me personally, choosing to really live my life (rather than ending it) was the best decision I ever made. I try to remember that it's one choice that can never be undone. I hope this site can help you like it has helped me with suicidal thoughts. There IS hope!
I just wanted to say hello and welcome you to BPDR. If you have any questions, please feel free to ask.
Harmonium