Minecraft wont let me sign in

I have Minecraft already downloaded but I never paid for it, I am willing to pay because that seems that it will actually work but when I try to create an account it doesn’t let me.

I have made several different emails trying but when the account is created and I try to login it won’t work.

I click to login button with the correct information but when I click login it just doesn’t load, it just sits there and doesn’t say anything like "invalid information", but when I try to use the same email again I can’t because it already is an account.

I am trying to login on minecrat.net to make the account.