positive thinking

Hi all,
When I'm feeling ok, I think positive. When I'm depressed (or just not feeling well ) the negative thinking flows like water. Any ideas on how to ALWAYS think positive? Sometimes I feel so bad that it seems impossible to think positive, I just get so overwheled with the depression and anxiety. I know this is affecting my ph. I am generally a positive person, although I do tend to be a worrier. I know I can always think positive. I know I can always think positive....I'm trying to be positive!...lol Tweet