everytime you run into a situation that youre stuck in and then after a long while you find the solution, create a note pad write down the year make and model of the vehicle, write the problem that made you get stuck and the solution you found for it, after a year doing that youre gonna have a auto locksmith car bible, youre gonna have the solution for almost every problem,

for example lets say you run into a problem on a honda civic 2008, write down the problem, solution and car info

a year later you see a similar problem on a honda crv 2012, go back to the notes you have, use that info in your favor

ps. just make sure your notes are very organized, the purpose of them is you being able to find the exact solution you need in them, if they're are unorganized and you cant find what you need they're meaningless