Sometimes it may be an issue of not having a good fit with the job. Sometimes we take jobs because we feel obligated to have "any" job and not the job that is right for us. Dr. Ned Hallowell says that it's important for us with ADHD to find a job that is something we enjoy, something we're good at, and something we'll get paid to do. Not everyone can have all three, but it's important to have at least two.

Second, what have you learned about yourself from these past jobs? Are you someone who hates a desk job? Are you someone who needs to be constantly moving? Are you someone who needs deadlines? Do you need close supervision or more independence? What are some of the things that make you angry at work? How often do you interact with peers? It's likely that you've learned a lot about what your work style and needs are. It can be helpful to write those down, reflect on them, and then meet with your supervisor to talk about what helps you work best.

Lastly, it may be that the ADHD or other mental health conditions are under treated or that other life issues are going unaddressed. Are you seeing a therapist? What kind of self care do you do outside of work? It could be that there's more stuff to take care of personally that is having an impact on you professionally.

Bottom line, it's not that you're bad or that there's something wrong with you. Finding the right job and staying in a job can be hard for most people. Changing jobs isn't necessarily a bad thing unless it interferes with other parts of your life. I'd be interested to know more about what makes you leave jobs, and also what makes you take a new job.