LBTC,
I know this sounds crazy, but....get a few plants and keep them near you during the day, with a light for them to grow. I believe that the good live vibes from plants can raise our spirits. Get one for your desk and make sure it has enough light, or make a tiny terrarium and have a littl egrow light over it. Get a couple of plants for your home. If you already have plants in your home, repot them with fresh soil and feed them so they are happy and growing and not struggling along. It might just be a subtle psychological boost, or it might even be more than that.