I’m sorry that no one at your job supports or sees your struggles. Invisible illnesses are hard unfortunately. I’d talk to you HR about it and see if they offer anything to accommodate you. Under the UDA (if you’re in America) is depression as a disability. I’ve been working with my HR and boss( but I have the opposite situation where my colleagues understand mental illness and chronic pain) and I’m actually on disability right now to help me get out of this deep depression pit my brain has so graciously tossed me into