anyone else feel this way or have any advice?

last year I struggled a lot with my mental health. I lost interest in pretty much everything, lost touch with a lot of friends, and just kind of slept all of the time. I’ve always been the go to person for my friends whenever they want to talk about something or they’re upset about something which is great i love helping them, but sometimes it feels like that’s who they expect me to be all the time, so i don’t talk about this stuff with them because i don’t want them to think less of me i guess, or think i’m a negative person because i don’t want to be. Anyways, It was a horrible period in my life and I thought i got past it, but this past week I can feel those feelings coming back, and I feel like a different person, the person I was before I felt better. I’ve been better the past few months, but out of nowhere I just started felling like that again this week though and i’m not really sure what to do. There isn’t a specific cause, it just doesn’t go away. I just feel especially alone right now and i’m really struggling with this.