Hi,
I try not to do what I used to do, which was to let all the small problems build up and overwhelm me. I try to tackle each one individually.
Also, my therapist taught me to look at all the things I do as goals to be accomplished. From getting out of bed in the morning, to brushing my teeth, everything is a goal and I pat myself on the back each time I accomplish one. This starts up a positive thought process in the mind, each time you accomplish a "goal" you feel a little better, giving you more energy to tackle the next one, and so on. As opposed to negative processes, such as drinking, then feeling depressed about drinking, then drinking because you are depressed, etc...