Oh dear, not healthy!
First of all, you are getting a brain chemical boost from the eating, but it’s probably the least effective way to nudge your brain into a different state. You are eating a lot of high sugar and high carb foods so that’s going to make you crash within a few hours (or minutes).
Some better things to try: -A nap -Meditative resting, music, knitting, folding laundry ect. -Tea -Short high intensity exercise -Go outside
My own hack is that I pop on a VR headset and play beat saber. It’s a break, exercise, music, reward and escape all in 5 minutes. If I am really stressed, I play thrill of the fight and punch my problems in the face.