Officially speaking I have been diagnosed with severe unipolar depression, severe general anxiety disorder and severe social anxiety disorder. I've seen three therapists over the years, and at least one of them in the mix also thought I may have ADD/ADHD, OCD, or be on the autism spectrum though I never saw any of them long enough to get that confirmed.
I know how much having mental illness can suck on all levels; treatments are either shove a pill into you and hope it works or long-term therapy that's expensive and you have to pray is covered by your insurance, if you have any. If you tell people they either think you're insane and going to murder them (illness like schizophrenia and DID that we've been told by popular media make people killers), they think you're lying or that it's normal and you can just overcome it without professional help (you don't have depression you're just lazy, we all have some kind of anxiety just get over it) and all the other nastiness that comes along with our society's lack of understanding about how mental illness really works and painting people with those illnesses as somehow being dangerous or lesser because of it.
My unfortunate reality is that I have no insurance and right now no money, so I cannot afford to seek professional help. But it's been that way most of my life, and I've learned how to cope for the most part even as both disorders get worse and worse with each passing year.
The big issue, however, becomes when both my depression and anxiety are basically conspiring to make me do nothing. My depression says I need to lay in bed, sleep 16+ hours and do nothing because what's the point of it all it's so hot outside and exhausting and just bleh. But my anxiety kicks in and guilt trips me for doing nothing, says I do have things to do (books to read, other projects to finish, ect) that I should get up and do because otherwise I'm just sitting around being a useless lump and a burden to everyone around me by doing nothing with myself.
In the end I usually get stuff done, but just very slowly. I wish I could pick one easy project and sit and do it on days like this, maybe just read a whole book or surround myself in the bed with a borrowed laptop, some Netflix and my macrame projects. But that's where the thought that I may be ADD/ADHD comes in - I can't do that. If I sit there like that for too long just doing one thing over and over again I will get bored and want to get up and do something else. That's why I have so many projects going at any given time, and swap between them so frequently. Usually 25 minutes at a time, long enough for my pomodoro timer to get me a work session completed and leave it at that.
It's just so frustrating, though. I wish I could focus on a single project long enough to get it done. I wish I had the energy to sleep 8 hours and be up for 16 hours and be productive like normal people. But I can't, and I know even if I could get professional help it is likely to never be that way. So all I can do is keep coping, keep moving on from one day to the next, work towards a better future, and hope that the days will get better.