Congratulations on the achievement voucher! You must have been doing something right for your boss to be so pleased. Even if you were stumbling along, you completed your projects to his expectations.
About your FB account, someone may have been trying to hack into your account. I've noticed a number of people in the States are complaining about hackers to FB. I would notify FB, if you can, about the situation and advised them that you've not been trying to login.
Take care of yourself. You've had a lot going on in your personal life the last few months and you don't want the stress to compromise your health along the way.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.