Sorry to hear this, I know how you feel I was with a mold/tool shop for 18 years when the owner one day decided to move it to China. I was one of the last hired most had been there 25-30 years....
If at all possible give starting your own business some thought. I did with zero regrets! Wished I had done it 20 years ago. Sometimes one door closing and another one opening turns out to be a good thing....