My girlfriend has depression. She's not diagnosed but we both think she has. 

For her is so difficult to ask for help when she really needs so she's not attending a psychologist either. But I see her every week and I'm her only support, cause I'm the only one she truly talk with about her problems.

It's been a bit hard lately, cause Im getting exhausted and frustrated for not being able to really help. Is like all I can do is make her feel worse. 
I want to help her so bad that it hurts, a lot.

I know I'm not a psychologist but I'm the only one she thinks she have. I don't know what to do anymore.

I tried to comfort her, I tried to make her see the things she have, the things she could do, I tried to give space, I give love and cuddles everytime I can...

I want to help her and stay by her side my whole life, but I don't wanna be hard on myself everyday cause is getting worse.

Please, help me now, what can I do.

I'm sorry if this triggers someone or feels selfish. I just wanna help.