I agree, unfortunately. And I say that from experience. If people could only look forward and discard all of the baggage from the past then many people's problems would be solved. The mind is such a powerful instrument. When it is focused on the past, which in many cases is past mistakes, it has the potential to cause many physical symptoms. The mind and the physical body are so inter-connected. Focusing on past failures or achievements, especially failures, does nothing for us.