Hi everyone!
I'm new comer here and really need help
I'm planning to travel around Southeast Asia for 10 days with my wife. We want to travel on 1st of December.
I think we will visit Thailand, Indonesia, Vietnam, Myanmar
I will flight from Australia.
Can any one experienced advise on:

1. Where should we start our itinerary?
2. where can't i miss?
3. 10 days are enough or not?
4. Where can i book tours?
5. cool place to stay?
6. what should we prepare?

Thank all so much!!