Invincible and Invisible

I've read a lot of wierd tactics and language that I do not understand on making yourself invisible on the internet.

I have a few questions and if anyone can answer them it would be greatly appreciated. I am not a coding,technical or systems programming expert. Please spell it out for me... in the words of Michael Scott "Explain this to me like I'm an eight year old"

I have a proxy set up through my browser...

What else do I need to do to make sure that nothing, not even craigslist will know when I create multiple accounts on it...

What do I need to do to make my ports invisible to other PCs on the internet...

What is the best stealth mode of doing things...like the total invisibility package?

I'm looking for methods not products..

I want to implement black hat tactics but I don't want to get caught... Please help me or point me in the right direction...

I'd also want to know the answer.

Just like me, I suppose the OP just needs a resource material to learn doing that.

Other than that:
- just visit the site you wish,
- remove all cookies,
- change your IP,
- rinse and repeat, rinse and repeat, rinse and repeat... not very smart.