It's terrible to feel so alone, I have been there many times, it sucks ! You can always post on PC of course, start up closer friendships by PM'ing members that you like there advice, compassion, or are in the same boat as you emotionally. Two emotionally shaky people can lean on each other and both feel stronger.
Check with your local mental health clinic(s). Mine has whats called a "Warm line" Just someone to talk to, I have called a handful of times and lines are being answered by people with mental illness and are they in a good place mentally so they really understand a caller is hurting and can offer an ear or a shoulder.
It's hard to reach out for help... But if you don't your going to just stay stuck and we all know that is the last place a BP person needs to be, "Stuck feeling alone"
Reach out