Question

تو نوبت هستم معلوم نیست کی وقتم بشه

Answer 1

I'm in the line and not sure when my turn is coming/turn is coming up.

Answer 2

I have to queue up for(x time) for(something) and I dunno how much time will it take.

I'm queuing [here] for  my turn to come and I don't know when its my turn.

I'm [still] waiting in the queue and I dunno how long should I wait for my turn.