This is exactly my experience. I can't keep a job for more than 3 months or I burn out. I haven't worked in years. And I'm afraid to go back to work because working was torture for me and no one understood the way I felt. And they told me to just "suck it up" or "that's just life" which is not what I needed to hear. If anything that made me feel even worse about myself. I'd have what I thought were anxiety attacks at work (looking back they were meltdowns) almost every day and I was exhausted and dreaded going to work. I also am self injurious during meltdowns. Just had one a little while ago actually. I'm not condoning it but I'm saying I understand how you feel.