Nature is pretty cool as well as spending time outside, but as with most things it's not something you should force upon yourself. Modern man has been mostly disjointed from the great outdoors, and as sad as that is, forcibly getting back there is usually a bad idea.
My advice would be, in case you actually decide to give it a try, to go someplace which isn't like anything near you. Different landscape. It could be a helper.
Or you know, just don't do it at all, and wait. Might come a proper day for it, might never. In my opinion it sucks missing it, but we all miss a shitton of stuff in our lives anyway.
In any case, all of this is certainly irrelevant to the quantitative and qualitative aspects of your testicles.