The cure for a busy mind

Everyone has about the same amount of thoughts in a day; somewhere around 65 000 of them. Yet, some people feel constantly overwhelmed by their monkey mind and a sense of no control over what's going on in there. What if the difference is only the quality of thought, not the amount? 

If your thoughts are mostly positive, constructive and light you probably don't experience the same overwhelm as if they're negative, destructive and dark, right? If this is the case, how could we lean more towards the lighter thoughts? 

I think meditation is one of the best tools there is for this kind of work. By regular meditation you train your mind to observe what's going on instead of getting kidnapped by them constantly. When you first observe you can also train to make conscious decisions on what kinds of thoughts to follow and which ones to let go of. 

What do you think? Does this reasoning make sense to you? 

With all my love,

Helena