I’m just not sure

Okay so I have no idea what’s going on I’m mentally and physically just drained. My life is just a mess for the first time ever I’m having financial issues because of crap at work. I’m in a new relationship we’ve been together for a while now and live together which is amazing I’m sure I want to spend the rest of my life with him I love him so dearly and he makes me happy and amazing in every way.. but for some odd reason I keep having these issues where I just get down and depressed and feel so alone and it has nothing to do with him it’s literally all me and a small part of me is afraid I’ll ruin our relationship with whatever mental health issue I have. He tries so hard to comfort and reassure me and sometimes it works and sometimes it doesn’t and I just fake smile and pretend it does and I hate that even more. I don’t want ramble because I’ll write a book but I had to get it off my chest.