Twrp backup, I wouldn't. Titanium backup I've done plenty of times. It has the potential to go wrong as well so keep a backup of where you're at beforehand
I quit school because of recess...they play too much
"I find it kinda funny....Find it kinda sad....That the dreams in which im dying...Are the best I've ever had..."
-Gary Jules
If you want to learn to develop, check out http://dreamsforgotten.androidninjas.com.

Fixed lol..Fixed for real this time!
Look out for your devs PayPal is appreciated.

Learn to Theme: Includes links to the next guide at bottom