I regard my feelings in an illogical sense; I believe they depend on my personal focus and nothing more. It took a long time for me to come to this conclusion, but after seeing I could be happy in miserable conditions and miserable in happy conditions, I realized that my perception of events is a function of perspective—possibly the greatest creative act I could ever engage in. (For me, this isn’t as simple as flipping the positivity switch, but more along the lines of settling into the most positive feeling that resonates—even if that’s anger or frustration—and accepting/abiding in it, not inflaming it, until it opens into something more positive like boredom, mild irritation, or mild satisfaction, which pave the way for actual positivity.)
Often, it takes a little while for my perception to influence (become?) reality, but that lag-time is good. It allows me to clarify what I truly want.