The human mind or its capability is beyond anybody's imagination or control. Don't waste your time trying to control it.
How To Control
More than 'Control', the human mind needs to be befriended. This can be done in 3 ways. Letting it function smoothly, understanding it, and acting decisively.
Do not be scared of the thoughts your mind generates. Trust it! Let it create thoughts naturally with full freedom.
Letting It Function
Pay attention to why your
mind is generating a
particular thought and
what is it trying to tell you.
Understand Thoughts Generated By
When you act decisively, your mind would support you. It would reciprocate to your earlier support to it. This strengthens your friendship with your mind.