It's difficult to start a career when dealing with ADHD, I work in IT and found that there are several roles that I can't and won't ever pursue. Anything that was a matter of monotonous configuration and settings is not even slightly an option.

I got into IT support and everything changed, my "disability" was suddenly an incredibly powerful tool. I had to rely on systems to force me into the patterns to complete the tedious clerical aspects of the job but that is something I've come to expect with any job I take.

The customer service aspect of the role forced me to reign in the socially negative symptoms like speaking rapidly and interrupting people, that was probably the hardest part of it realistically but the results have had a huge impact on the quality of my personal and social life.

It doesn't have to be IT but we have to accept that it is a Sisyphean Task to try to completely overhaul who you are to fit into whatever job you happen to find yourself in, you have to actively work towards transitioning to something that you will find interesting and that will force you to interact in a meaningful way with others making you focus on improving your social skills.