Translation of haftbar

Boston is kind of huge neighborhood, generally very friendly people and you may meet many people that you already know. So it is pretty easy to get used to and if you grow up there, you don't wanna leave. If you do, you are going to miss it terribly.
Just last week a friend of mine showed me how to do these special effect, so I was focused about this word. I have been sleeping five hours a night for a week now and I am pretty tired all the time. Hopefully recovery will come soon.
I have learned German for one year and I would like to intensify my studies. Do not know how yet... It is very difficult at my age to start new projects in life. I am over 75, did I tell ya...