It's fairly easy when you know how to, videos how great however the thing you get from someone which you do not have from a video is to realize how much pressure is needed.
The 2 most common mistake and reasons why people cannot pop their snakes is that they do not apply enough pressure and do not position their fingers properly.
Get to meet local people I am sure one of them will be more than happy to show you how to pop and even how to probe and for free.
I pop hatchlings and adults and very rarely probe an animal the only time I ever had to do so were with animals that were VERY tensed up.