Yes, you are not required to be unemployed to declare bankruptcy.

No

You can declare bankruptcy due to credit card debts, yes.

It is necessary to declare bankruptcy when a person cannot afford to continue paying for bills and other things they need. A person may declare bankruptcy if their business is not making any money.

It takes seven to ten years after you initially declare bankruptcy for it to drop off your credit report, and you really should wait at least 1-2 years after that to declare again I hope that helped.