To add to what fedda said we also have guides on how to make settings that will fit you as the cheat is very customizable. We also have a wiki explaining every feature in the cheat.
Activation can take up to 24-48 hours once you're activated you'll receive an email explaining the next steps such as where to download and the password to the builder file. Here's the link https://leaguecheats.com/linkaccount.php where you can link your account