I don't want to have ADHD

I have a few mental health conditions I've been diagnosed with such as tourettes, depression, anxiety, gender dysphoria.

I've always struggled immensely with ADHD symptoms and never was able to finish my education due to this. My current job really has highlighted how severely it effects me. I'm constantly messing up, unable to focus at all, moving around, jumping from task to task, unable to stay organised, making repeat careless mistakes. My manager is very in control of himself and doesn't understand why I struggle with these things.

I feel like having/persuing a diagnosis for ADHD would be so mentally and financially exhausting, at least from what I've seen and heard. My family don't do well with mental health stuff, so it wouldn't be something I'd even tell them at all. Having ADHD doesn't feel like something I could proudly own or accept, especially considering the slew of other invisible issues I have. It's hard to advocate for yourself, especially with the current "overdiagnosing" and negative stigma towards these conditions.

The only reason I am thinking of this now is because I really love this job but am struggling significantly to work effectively. I feel like medication could really help me but I'm scared of starting when I'm already struggling in the health care system to get treatment for other issues. Would really appreciate some advice or your perspectives