Yes. Good pair of head phones I can close my eyes and be where my music is.
Or you know, go to the library and not sit next to the freaks doing bong hits.
What do I recommend?
1) Good drugs. Yes ADHD drugs are over prescribed to 5 year olds acting like 5 year olds but if you have a legitimate need for them they help. It's like asking "Hey Slashdot. I have cancer I don't like drugs because of xyz. What do you recommend for cancer?". Work with your doctor to find what works. I'm on Welbutrin which is an SSRI not a *Meth*
2) Go to the library. Do you work somewhere where it is quiet.
3) Why can't you cover your walls in foam? Go to the big box store and get 2-3" blue or pink plastic insulation and just put it up. Use double sided tape. No one says you have to tail things to the wall.