Euro Trip 2018 Prep: the chaotic process of planning a trip for people(me) with disabilities

I'm in the process of planning 'Kestler Euro Trip 2018.' Yes, I know, I live in Europe, so I won't be crossing an ocean, but my parents will be. And my brother may come and a friend from college. My life is a bit at a crossroads and I'm possibly looking to leave Europe soon.…