I can surely understand the emotions at play.
I was previously a ~ 30 year employee of CVX who fell to the axe in '14. Believe me I felt the fear, self-doubt, failure too.
However....
A different/bigger/better role opened at another operator. I got it. This was on the back of my experience gained at CVX plus not being a complete and utter a-hole. However, things may change again for me. This time the emotions will be less - I hope!
Regardless I have had the opportunity to work either many good people at CVX and elsewhere. The majority have behaved in a good way ( based upon my own belief system).
Life will go on regardless. Do not waste your energy on negatives. Change will likely be outwith your control so focus on the next step. Don't look back in anger.