Over training as a condition that should be avoided as soon as possible, find reason below.
On other article we've mentioned about the characteristic, and if you think you're already in this situation then don't be panic cause we can try to help.
You may need to stop for doing workout activity for a while, and see that you can become more refresh and fit for the next phase.
Don't forget to provide yourself with best foods as well, which include vegetables and fruits.
You can also try to reduce exercise session time and its frequent, and a program like explained in Healthguideblog has higher and also lower intensity for producing that, and it ensures you not to do over training.
Surely another factor not to forget is you must provide yourself with enough rest. You can provide certain time ranger before one exercise to another. You need to make sure the energy is enough to run all of activity and prevent excessive fatigue.
Of course by varying the type of exercise to do then you can also gain more benefits. If you are stuck with one type of exercise then you'll face plateau as well. You can also try something like Yoga to refresh your mind condition and get more spirit after that.