The I needs to change your mind to what you want it to be. It will not be easy at first and it might feel like it is impossible, but never bow down to impossible and be stubborn and hold on to possible. faith in impossible will make it impossible, and no matter how hard you try, it will never work. That is why you must always have Faith that it is possible, then it will truly become a possibility.
The more time and attention you give to undesireable thoughts, whether paranoia, hearing voices, obsession or whatever else; the more you change your mind to go further into those kind of thoughts. Dwelling on undesireable thoughts will change the hormone balance of your brain to imbalance, and your spirit will also be imbalanced.
Fight undesireable thoughts and resist them with all your might. Resist the feeling of paranoia, ignore it and push through to where you need to go. Any time you think you hear somebody's thought, ignore what you heard and assume it came from your own mind.
Resist obsessive thoughts, fight it, and fight any other thoughts that brings imbalance. Every time you fight it, you will bring your hormones, brain and spirit closer to balance. You might waver in the beginning, but as long as you are stubborn and don't accept failure, you will come closer and closer to balance, until you finally reach it. When you do reach it, the fight is far from over, because the thoughts will try to return until you get to a point where they have been completely controlled.
I don't know if any of the things you percieved as telepathy, visions or other such things were real, or just your imagination; but until you return your mind and spirit to a complete and strong balance, you must treat them all as imagination, because you are not in a state to know what is real or not.
When you come to a strong and steady balance again, then you might be able to look into those things again, but you will need strict discipline and be skeptical so that you don't bring yourself to imbalance again. You will need to learn how to see the difference between Irits and imagination.
The brain is a very adaptable organ, as long as people take control to make the changes, and hold onto the will to make those changes. Often when people have a stroke, they can regain certain things they lost, whether speech, body control or other things. Certain parts of the brain were completely destroyed, and they don't come back to life; so the brain makes new paths and connections to take over the functionality. Some people who become blind, learn to connect there ears to the visual section of the brain, so they can convert sound into sight, and can even see you moving your arm a few inches. Sometimes these new connection just happen, but when people work towards those goals, they make improvements more quickly, and for some it makes the difference between improving, or not improving at all.