Happy to hear from you. I can sympathize with your struggle with mental slugginess. From your comment on returning to school, I infer that we are on oppisite ends of the age spectrum.
Since I've been on Zoloft I have the same problem. Slow to learn new stuff--
what's worse I've lost my facility with technology; forgot some basic stuff re: computer software that I've used for years. Lost interest in digital music, digital photos; etc.
Hang in there--you have a long life ahead of you---make the most of it.