The Tik Tok videos are cringe af. If you want to actually learn watch this:

If you're an absolute beginner do this:

Make a Twitter account.
Go into the search bar and type:
@blackhatwizardd "thread"
This will let you read all of the in depth threads I've made for free

If you're an agency or freelancer, want to get clients, and want to get results like this, click the "Cold Email Mastery" button