I am presently trying to study the mind as well. Mind as not specifically connected to the brain is not just a physical component. It has a major social component to it and the way mind works depends a lot on what we term as cognition. Cognition includes but is not only limited to perception, sensation, idea, deduction, action, adaptation or intuition. So, control of mind is not totally dependent on you but a large part of it is. A manner in which you can proceed would be to make your surroundings apt to how you feel they should be, something that makes you at ease or comforts you. Maybe for a while talking to only a few people who make you feel good about yourself. Playing with pets. This would make your mind loose and then you could after the deconstruction slowly start active reconstruction of your mind in the direction you want.
I hope this helps.