Hi, Harvard is known for its spectacular teaching and exposure. You get to have the world class experience there and it is very difficult to get an admission there. Also, for UK is said to be a better option than Australia for psychology. There are a lot of things that differ when it comes to studying in different places. Harvard and such elite universities have been training people to be the elite students and to shine wherever they go. The curriculum is totally different in all the countries. The expertise faculty that you get to interact with. You also get to live a little more independently by going abroad. Overall, it is worth every penny you spend for your education. If you still have any doubts you are free to comment back here. Hope this helps. All the best!