Spells don't work that way unfortunately, other than meditation there's nothing I could really suggest.
I haven't tried myself, and most people either say it doesn't work or not to even try it at all unless you want to have a bad time, but you could try using an Ouija Board and see if it works.
When seeing and/or talking to spirits, don't anger them and don't always believe what they say or do, they could just be testing you or saying what they said because they knew you wanted an answer (For example, you asked "Did you live in this house before me?", and the spirit said "Yes." even though they never was around.
As a little tip with your 3rd eye, work a little more with balancing all of your chakras, not just your 3rd eye, and the more research you do, the better.
Best wishes and Blessed Be!