I've discovered that in the mind's frantic reaction to uncomfortable emotions, wanting to not feel them, it comes down to the most primal mode of functioning: fight or flight.

I've tried both, as I tried to find inner peace.

I agree. They need to flow. If you suppress them, they will cause you unneeded pain until they are released.

If you fight them, try to "reason" with them, go in circles in your mind trying to not feel something because you think it's your fault and you're in control of your feelings, again, you'll cause yourself unneeded pain and stress.

If you try to suppress them, hide from them, fight them, whatever, through unhealthy coping mechanisms like drugs and alcohol and eating and many other things, you will again have to deal with more pain from the consequences of those temporary escapes.

Only letting them flow as they come, let them come, let them be, let them go, will minimize the pain you feel and the scars that are left. This takes lots of practice, and it's easier said than done when the pain is so strong and keeps on coming.

But, this practice of observing and not reacting will slowly bring you closer to inner peace, closer to a default state of happiness, and stronger resilience, rather than feeling that your life is falling apart more and more, because of not properly dealing with the emotions that come, but don't go.