What is ACT for?

I have a bachelor's in Psychology and want to pursue my masters abroad
Please help me choose a country

I want to visit the university before I apply for my undergrad course

I want to prepare for GRE and was looking for source material
My vocab is very bad and needs improvement

The university I'm applying to wants me to write an essay on why Yale

How much is the tuition per annum?

What all requirements are there?

How much will it cost to do this?

What all things do I need?

What is the registration process?