Remembering your existence beyond this life is not for everyone. It can stir up old emotions, you can remember traumatic events, it can resurface old fears, and it can even alter your present personality the further into it you get.
We don't remember for a reason. This is a time to learn or gain new insight without our old memories causing obstacles.
I began to remember quite a lot without regressing and used self regression to fill in the gaps and clear up my confusion. But once you open the flood gates, there is no stopping it. Memories will continue to resurface and sometimes at the most inopportune times.
I suggest that you make sure that you are in a confidant and secure place in life emotionally, mentally, physically and spiritually before attempting to pry at locked doors.