How do I

im a newbie need some lessons ;d

Do you know some way its kinde easier for me?

Have a look at the tutorials section above, there's plenty of good stuff to get you started or check the built-in examples (in startup screen).

Best to start with is one of the platform tutorials.

I would recommend the following, as the one from Ashley requires that you have purchased a license and got the graphic bundle that comes with purchasing:

https://www.scirra.com/tutorials/243/building-a-platform-game-a-beginners-guide