I'm not sure I'd recommend numbing emotions.
http://www.npr.org/blogs/health/201...r-brain-on-psilocybin-might-be-less-depressed
Psilocybin could possibly be beneficial to you. However the negatives are that it is illegal abd tgat results may vary greatly depending on factors within one's own psyche and that of the environment and setting one takes it in. If one were so inclined, I would suggest they do a lot of research, read up on other peoples experiences, and plan accordingly. Such an experience is not for everyone. However, the research does reflect what has been known for a long time by the learned few. I would name a few other compounds, however, in my personal opinion, psilocybin is relatively safe, comparatively to synthetics available. However, the wise know, any such mental journy commands respect and demands responsibility, in the form of proper knowledge, preperation, and ritual.
As for me, such is not an option.
I have a nice list of things I can fall back on, to try and get myself through the rough patches. Exercise, eating healthy, getting outside, and the arts. I find there is a lot to be found in creating something, even if it is trivial. There are also the vitamins, teas, herbs, auromas, and various physical disciplines, of which some have suggested.
And though, I have listed an ancient sacred sacrament practiced by some ancient tribes (and still to this day), there are many Native American tribes, that did not have ready access to psychedelics, however, they still managed their own rituals that would lead to discoveries of the self. Often such rituals included intense fasting, solitude, extreme physical duress, basically, shaking things up, big time.
With that being said, I wonder if it would not be beneficial to take a sort of solitary journy somewhere, out in nature, and just spend a few days, looking for, 'something', or waiting for, 'something', to come to you. Perhaps plan a trip, bring a camper, fast, take only neccessary water. I wouldn't recommend such a thing to some one who is taking prescribed psychatric meds, or to some one in poor physical health, however if neither is the case, perhaps a sort of, self concocted, 'vision quest', might bring some insight...
That's my 2 cents. Good luck to you. There is much beauty in the world, though it often eludes me, I still manage to find it here and there. May you find some, or may it find you.