Welcome to USA!
It is a long process but if you can take 1 step at a time you can do it.
1st you have to choose any company that could evaluate your eduation equal to US PT then the evaluator will say yes or no equavlent to US PT to the board of which ever state you want to apply to say e.g. New Jersy. Then you need to apply to the board asking them to allow you to take license exam and then you take license exam if you pass you work. some times you need to take additional exams like toffel.
otherwise you are fine.
Iam working on my credits.
If you work right you should be all set in 6 months otherwise it will take even more then 1 year and less then 2 years.
All the best