Reaper software used for editing clips. Software is available on limited free trial. Go to reaper.fm

You need patience, time and more patience.  Editing and ensuring that sound is perfectly aligned takes time. Lots of time and care.

Have fun doing it! Recording sounds, feelings, sensations and phrases can also be very entertaining. Who knows, some of the best recordings can come from off script experiences.

Audio foundations taught me how foley sounds are used in film to make the scenes come alive and really add to the viewing experience. 

Wwise a middleware program allows users to integrate sounds into PC Games. 

Watch your meters. Make sure they are not clipping. Lesson learned. :)