Yeah. Human memory evolved to keep us alive not happy. Brain assumes anything that stressful must be life threatening and we obviously should remember that so we can avoid it in the future.
I personally find having a rational understanding of the utility of emotions helps me process them.
Many times the best way to respond to strong emotions is to just sit with it. Sit and do nothing but experience it. Don't try to "solve the problem", don't shove it down.