You can also achieve control over thoughts and emotions without using meditation at all, simply by having an understanding of the detrimental effects of negative emotions on your physical and mental health, and stopping yourself when you identify a situation where you have an emotional response. (I think this is similar to what CBT attempts to do).

In my experience of dealing with depression/anxiety/burnout, having lots of thoughts and ideas isn't the problem. The problem is negative emotional reactions, excessive responsibilities (which itself likely boils down to a negative emotional response), and not feeling in control.

In fact having a racing mind can be helpful in dealing with stress in some ways, by engaging in flow activities.