How do I get into a stable routine for school again?

I have currently been home from school for 3 weeks (including on break), and before that I have only been at school 3-2 times of each week. I seriously feel like I have failed so much. I am in my third year of highschool and it should be easier knowing that it’s my last year before I can get employed, get further education or just take a year break from it at. But despite that thought it has not encouraged me at all.

I have no energy to go, and whenever I do I get extreme anxiety and have to go away from classes to just go and cry when it gets too much. I had my future planned out so well in my mind but I’m just ruining it now. I’m an art student but I can barely pick up a pencil anymore due to how useless I think everything is.

I have tried very hard to get help but anything with mental healthcare in Sweden is so useless. Like, why did I go to an emergency adult psych just to sit and wait 6 hours for someone to talk to, and then like ALWAYS, just get anxiety lowering meds and a “faster” date for my next mental health appointment (this was a week ago, still radio silence).

It has been like this my whole road with depression which is since I was 13, and it feels like I have gotten nowhere because those giving me “help”, don’t want me to get anywhere.

I don’t know what to do anymore. I’ve so desperately wanted to get better but everything is just pinned against me for some reason. And now I’m at my lowest I’ve ever been and I can’t even muster the strength to do anything and I have no idea how to get out of it. And I guess that’s why I’m resorting to even posting here because I don’t know how to go from here at all.

I also want to note that I am autistic so a new routine for me is very hard to gain, especially with how severe my anxiety is (I take a lot of meds for this).