Being recession-proof means being prepared in case you lose your job. What if, no matter how amazing an employee you are, you get laid-off? You must have a financial backup plan.
Have at least three months of expenses saved in case something happens. The optimal amount of savings is six months but I know many find that unrealistic. If you can do six months, however, all the better.
You need to calculate ALL of your expenses and start saving immediately. Here is a list of items you must not forget:
1. Mortgage or rent
2. Gas and electric