"perms" are short for Permutations, which are used in the last Step of CFOP, Or "Fridrich"
CFOP stands for Cross, First 2 Layers, OLL and PLL.
1.You should already know how to make the Cross because you know beginners method.
The Notation is really easy to learn, you should only need to learn rotations and Slices moves. I used
this guide when I was
first learning CFOP.
2.You should look up tutorials online, youtube, or anywhere else for F2l, its really easy to learn intuitivly, and with practice this will become easier. many Beginners use an f2l method called "Keyhole"
3. Learn 2 look Oll. If you can make the top cross using beginners method, you can do this.
This is a good Guide, but there are many other resources.
4. Learn 2 look Pll, and eventually full PLL. you only need to know the A perms and U perms to start, but later learning all Pll's will make you faster.
This is a good website for this.
5. Eventually, once you have mastered all of this, Learn full Oll, and how to make the cross on bottom, Extended cross, etc.
6. Practice Practice Practice! thats the only way you'll get better. I hope this helped, and good luck!