Good Times Drago ................
you could still daven at a chabad shul definitely one of the more welcoming shuls around the world its a shame that your teacher told you not to go cause your missing out ..........
I've since moved, but when I was still in CLE, I took advantage of their mikvah, and an early minyan I davened with used their sanctuary on simachas torah.
Interestingly, the yishuv I live on now, had an interesting chabad story from a few yrs back.
The local chabad was becoming increasingly meshichist, so the shul Rav, who was against it, closed down the chabad so he could get rid of the group. It's since been reopened w/o those ppl, who started their own minyan elsewhere.