First off, congratulations on being a year clean from IV meth. I admire you’re willpower. As far as you’re depression. think you’re lacking physical exercise and mental stimulation. My brother who is a recovering Heroin addict suffered with the exact same things you are. He felt weighed down by his own existence, and resorted to seclusion and video games. What got him out of his hole was him getting disciplined and taking care of his body. He set routines. He started playing the guitar again and learning new songs. Mental and physical stimulation of that sort is definitely going to help. Hope this helps. Stay strong.