Encrypt anything you want on an unbreakable level!!

I can make a very hard to break code for you. You can send me any sentence, and I will do it. I will of course tell you what I did and how to ¨reverse¨ it back to normal. This could be anything. I have a few levels:

1. Normal (still hard but it is not special in any way)
2. okay...getting harder (this will be longer and less known encryption)
3. wait what?! (this will be encryption with made up tactics to be even sneakier and really hard to crack. It cant be done with a computer because it is made up and of course you know how to crack it. This will be really complicated math to. BUT it seems fare that you might pay 1 dollar more than usual.)

You can send bigger peaces of text to of course.