Hi, i choose to try the 60 days trial and i wanna cancel it before the payment goes, i have looked through paypal, nothing there, i have looked on avast website, nothing about cancel subscription,

Please help me. Where do you cancel it?

For sales and related matters, licenses renew, refunds, open a ticket: https://support.avast.com. Please, understand that the forum users can’t address these issues.
Thanks.