Hi there! To delete your account, please click on your avatar in the top right navigation when logged in on Behance.net, visit Account Settings, and hit the "Delete Account" tab. There, you'll have the option to delete.
Before you do so, please note that:
PLEASE NOTE: Deleting your Behance account does not cancel any memberships associated with your account. If you're attempting to cancel Adobe Talent, Adobe Portfolio, or other Adobe memberships, please log into accounts.adobe.com and manage the membership you're attempting to cancel.