ADHD

First off I am in England in the UK, so that's the medical system I would probably be using.

I've had significant issues with executive function throughout my life, but especially in the last two years of my integrated masters degree. This includes organization, as well as staying focused. I've had issues with losing things, multitasking, procrastinating, racing thoughts, and other issues in the other areas of life as well. I am thinking of going back to do a PhD or starting my first full time job, and am worried that I will really struggle this time.

I got a diagnosis of Asperger's before you could officially have a dual diagnosis under the DSM. So even though some of initial paperwork said I had significant evidence of ADHD, I couldn't actually be diagnosed with both so I guess Asperger's took precedence. This all happened when I was like 4 or 5 years old.

I am thinking medications or maybe therapy might be helpful, but I don't know if I need the second diagnosis to get those. From what I understand the NHS (UK public health system) has long wait times, and going private might be expensive. Additionally going to a psychologist, and talking about stuff with my family seems scary.

Additionally I have issues with sleeping and waking that probably won't help get all of this organized, and I probably need to get this addressed too. I understand that both ASD and ADHD can cause sleep issues, so maybe getting treatment for those would help.

Sorry for the long post. I hope this is also the right community for this as I wasn't sure where to post this.

Edit: I also have hyperfixation/hyperfocus/special interests out the waazoo, but I didn't know if this was relevant as that's also a part of having autism.