P.L.
I too had sleep issues for months after my daughter started sleeping better at night. You should stay away from TV or Computer stuff when you can't sleep. Those only make it worse. The "screen" effect stimulates the brain just enough to keep the mind active. Reading is fine but with low lighting.
I am breastfeeding so I never took sleep aids and eventually my body got used to the idea of sleeping again and things are much better now.
Also, you need a bedtime routine just like the baby does. Don't do chores or watch TV right up until bedtime. Give yourself at least 1/2 an hour for your bedtime (soothing) routine.
Best of Luck!