"I wish you all the best in making your dreams come true" is the Engpsh equivalent of "祝你梦想成真".
The phrase "I wish you all the best" is a common way to express goodwill and good wishes to someone. "Making your dreams come true" is a way of expressing hope that the person will achieve their goals and aspirations.
Here are some example sentences:
"I wish you all the best in your new job." (我祝你在新工作中一切顺利)
"I wish you all the best in your studies." (我祝你学习顺利)
"I wish you all the best in your future endeavors." (我祝你未来的事业一帆风顺)