Since you don’t speak Arabic, and presumably you also are illiterate in Arabic, then your parents must be planning for you to attend an English-language university in Dubai. Which one is it that they like so much? Go visit it with them. Find out what majors you can study there. Find out if most students stay there until they finish their degrees, or if they usually transfer out. If they are transferring out, find out where they usually go.
Transferring is not easy, especially coming from a university in a different country. Ask your parents to help you do some reasearch on the transfer process so that you can be better prepared when that time comes.
You also need to have a calm discussion with your parents about their age 20 restriction. What are you doing, or not doing, that has left them with the idea that you won’t be able to cope on your own until that age? What happenned in their lives that makes them think 20 is a good age to be more independent? Are there other things that you could do (supervised gap year program, high school study abroad program, etc.) that would help you get ready to go to college farther from home?