Hypnosis is another route you can take. You would make a script on how you'll be able to unconsciously re-learn the experiential data within your unconscious with ease and emphasize on how your mind can then find ways to deviate from what you knew before to presumably have better perspectives on learning skills. Overall, with any method you use, you should heavily consider letting the unconscious do the imagination for you while you give out the words. When people use willpower alone and try to dominate over what their unconscious can imagine for them, they either have a long and lengthy mental battle with no luck, or it eventually gets through (while being exhausted and frustrated), or they're just lucky and it gets through just fine.

It's not just about imagining it, there's a different between wanting to have a new skill and being committed to reaching it. And in order to do that, you have to keep showing your mind that you are ready to learn and how it's going to be beneficial to you. If you "sorta" want the skill or "kinda" want the skill learned, you'll get what you put into it.