As someone who has dragged his sorry ass out of the pit I can testify the sun is still shining and can be seen again. Whatever you decide to do there are things you can do that will help you be more content with whatever you decide to do. It's what sobriety is all about. Through serenity comes clarity. Learn to relax the core of your being. Yoga, mindfulness meditation, a good diet, exercise - but always in moderation. Acquiring a moderate outlook in everything means letting go of extremes. It's an overall change of habit that takes time. As you relax your mind and body, focus changes. Initially, though, all the crap will reveal itself so it can seem like it's a good idea to be ignorant so it's time to be persistent and patient as the crap thinking rises and passes away. In time, as that which has been denied is coped with you might find that what was believed to be a problem isn't a problem any more.
Anger management?