Hey /r/BPD

A very good friend of mine has been diagnosed with BPD and has been living with it since she was about 10. She constantly talks about how hard it is and i try my best to help her and cheer her up but it just seems like i make things worse for some reason. I would desperately like to help her but i just don't know enough about how this disorder works in the mind. I was just wondering if any of you would educate me a little bit on how this disorder effects you on a daily basis, any methods that you use to help yourself. Any advice is greatly appreciated.