Question

Where can i start learning about quantum mechanics?

Answer 1

I would go to MIT Open course and find the class that is at your skill level and one that you want to do. You could also pick up a book "Black Hole Wars" by leonard susskin that breaks it down a bit in a easy to understand way depending on the level of understanding you want to achieve. I would say start at ground zero and work your way up to it.

Answer 2

Also if you are interested in quantum mechanics learn everything you can about the atom before starting to tackle that subject.