Take care how you try to take control of your mind. You seek one-pointed concentration, but I tell you concentration is always one-pointed. Only one thought can occupy awareness at any one time. Do not try to force the mind to do anything unnatural. It is the nature of mind to jump hither and thither, so any effort to concentrate and confine it is doomed to end in frustration and disappointment.
While you cannot contain the mind, you can certainly work towards stilling it. A turmoiled mind chops and changes, thoughts race from one attachment and from one anxiety to another, unmanageable. In a peaceful mind thoughts move smoothly and without agitation; one can give each thought all the attention it needs before passing on to the next, undistracted by fears and anxieties.