Do yourself and don't try to learn everything at once.
Start with the basics (Linux). Get an easier to use distro and learn Linux. That won't happen in say a week. Get familar with the entire OS, how to configure stuff and the practical command line tools.
Afterwards start to dig into how networking works.
After you've dug into that and know how that works, you can start to learn about pentesting.
If you just jump into the topic of pentesting because you want to be such a c00l h4x0r, you will miss the point of it and won't be anything more than a script kiddie. It is not about only using what others are feeding to you but that you are also able to develop ideas of your own and pursue them.