How to pick a lock? interesting question. It depends which kind of lock you are trying to pick. some of them will give you a hard time and some are not.
It all depends on your talent and hard work and your practice practice practice which you have to make all the time, in order to succeed.
Some of them just won’t pick. True story, you may not realize it but some of them are just hateful. One day you might pick a lock easily and have no luck at all a week later.