While in college and struggling with emotional rollercoaster, which I now know is bi-polar disorder, I took a summer course called Wilderness Liturature. The course involed class time, reading "Wilderness and the American Mind" by Roderick Nash, and field time. Activities included: 1 day canoe at a local stream, 2 day overnight canoe on the Susquehanna River, rock climbing, and a 6 day backpacking trip in Dolly Sods, WV wilderness followed by white water rafting. The hike was the most special. No cell phones allowed, the wouldn't have service anyway. You carried everything you needed on your back with you. Sleeping in tents, filtering our water from streams, cooking our own food, keeping a journal the whole way. This was truely one of the greatest experiences of my life. The deep connection of nature I received was enough to level me out, clear my head, and get me back in touch with reality. There was a night and day change in my grades and school work the following semester. I just felt better all over.
I highly suggest an experience like this. If this seems indimidating, try just a simple walk in the woods. With someone or alone. Just you and mother nature as one. Breathing together, hearing together, feeling together. Take in nature for all it is worth. Let it inside you and your mind. Soon you will find it consumes you and there is no room for all your fears and worries.