Seeking sponsor for help with depression, motivation, graduate school

Hello, I am 23 year old female in graduate school for my PhD. I am super stressed out, kinda depressed, definitely losing sight of myself. This PhD and the career it leads to is my dream... but I feel so lost. I'm sad, frequently enough that I've started seeking therapy.

Is there a sponsor out there who has completed a PhD and might know what I'm going through? I can't really talk about this with the people in my lab so I feel very alone. Someone to talk about my therapy sessions (when I find some...), someone to remind me of why I'm putting myself through this.... someone who can brainstorm ways to kick myself into gear. I've tried so many things and they just aren't fulfulling, but I need to make a change and it needs to be long-term so I can have a successful career in academia/research.