How to make a mine craft account?

I have minecraft on my my computer already but I want to create a new account and if I do this on minecraft.net I have to buy and download minecraft again for £17:95 and why should I do that if I have the game already. Please could you tell me if there's a way I can make a new account without buying the game again( I was trying to make a account of my iPad because I'm on holiday and my computer that has minecraft is back in England )
Thanks for answering if you do

Added (1). I'm trying to make a new account

Just login to your account on minecraft.net and download it for free

You have to pay to have a new account but you can make ''profiles'' in the launcher, which isn't the same as the account but you can eg. Play on different versions or whatever.

Go to minecraft.net, go to downloads, download the server.exe file, put the exe in a folder on your desktop, run it, edit the config file, delete the folders relating to "world", re-run, port forward your router (different for every person), open port 25565 in windows firewall, both TCP and UDP, done! Run and enjoy!