What really gave me confidence to do my own attachments was watching a video from "Michigan Baldy." This is an excellent tutorial that slowly explains step-by-step the entire process of
Attaching, removing and cleaning and reattaching hair pieces. Michigan Baldy (Jeff) does a great job in clearly explaining and demonstrating how to do this. You will find this on youtube.
I truly think anyone considering DIY hair installation and removal should watch this video. I know it helped me tremendously!

~E