Make sure your getting your energy from nutrient dense food, especially if your running or biking, and not from junk or processed stuff so much, that may help.

no realy a question, but if u want to not be tired. Then get more sleep and eat food with IRON this is key in keeping your body, well the opposite of what your feeling.

Ex. eat STEAk

Dried Herbs

Cocoa Powder and Chocolate

Clams, Oysters, and Mussels

Sun Dried Tomatoes

caviar

and most common is dried appricots

Lack of exercise and a proper diet will lead to you being less energetic.

Exercise helps to circulate your blood better, thus, you will have more energy!

You can go to travel to have a relax

Take rest.

I am not sure what this has to do with green living.

Just have a good rest please. treat yourself better.