I think choosing computer science was the best decision. But it all depends on your point of view. If you see them at the perspective of opportunities nowadays, Computer Science is way better than any other engineering branches.

But if you are really interested in Aerospace or aeronautics then they both are also very good branches. Choose based on your interest.

Hello, 

Both have exciting careers. These two streams are SO different from each other that you must choose one based purely on your affinity towards it, and there will be a rewarding career waiting for you after your degrees are obtained.

Continue your study in Aerospace Engineering .. This field doesnt teach you only aeronautics, it teaches you a lot of things that you will discover later in your practical life, studying mechanical or aerospace engineering teaches you how to think, how to analyze things, how to adjust and survive in any tough situation, and more things ... After you graduate if you still feel like doing CS, do it afterwards.

I hope this would help you. For further queries please feel free to write me down in the comment box.