I like to start doing like this, but as you can see I'm like most people here don't have experience on electrical or electronic equipment
do you have an idea where I can start doing shit like this??? not up to professional of course but as a hobby where I don't need to electrocute myself would be nice
Building an e-bike battery from some random trash is a terrible idea. You won't electrocute yourself, but you are very likely to burn down your house when one of these cells randomly decides to ignite.