Finally, the edges need to be swapped. There is one of four situations that need to be performed to fix the cube. In our present situation, the one we'll need is the Double edge swap.

Edge Cube Anti Cycle RU2 RURUR2 U-1 R-1 U-1 R2    Edge Cube Clockwise Cycle R-1 U2 R-1 U-1 R-1 U-1 R2 URUR2    Double Edge Swap R2 U-1 R2 UR2 B2 R2 UB2 U-1 R2 B2    Double Edge Swap (cross style) -  a) R2 B2 F2 L2 D L2 F2 B2 R2 U-1 b) R2 U2 R U2 R2 U2 R2 U2 R U2 R2 b - is restricted to the UR group, is faster, and is my preferred method

Finally, it is solved. Of course every situation is different. You should spend a bit of time learning the building of the bottom and middle layers. This stage is perfected by studying the cube and seeing how you can meet the corner and edge pieces in pairs. There are many combinations, and you should try to learn the quickest possible way for each one. That stage will teach you a lot about the cube. As for the top layer, well... this is just a case of learning a few algorithms and knowing them off by heart. Most are very easy to memorise as they might only use two faces, but some a little long and complex. So how did you go? Let me know if this tutorial helped, or if you found it difficult and why. Maybe I can improve it for you.