Past Lives

This is a request for help.

I've been thinking about Past Lives - if I had one (which, I believe I did) how do I figure out where and when I was? (sorry for the bad English)

I've tried Divination with Tarot, but, to no avail. I've asked for answers in Dreams; that didn't work. I have a book, but it is a 10-week study with everyday exercises - I'm committed, but, that's just way too much.

I'm not looking for a quick fix. I'm willing to spend the time and Energy. I need to find something that works.

Any guidance would be appreciated.

Peace