I am a employee and working as a waiter more than...

If your work contract does not expire, you must stay until it expires, as the work contract ends with the expiry of its term, and if you leave work before that, you will be obliged to compensate the employer, as the Federal Labor Law stipulates:
Article 113
The work contract ends in any of the following cases: -
If the two parties agree to terminate it, provided that the consent of the worker is in writing.
If the period specified in the contract expires, unless the contract has been expressly or implicitly extended in accordance with the provisions of the law.
- Based on the will of the parties in the indefinite employment contracts, provided that the provisions of this law related to the warning and the acceptable reasons for terminating the contract without arbitrariness are adhered to.
Article 116
If the contract is terminated by the worker for reasons other than those stipulated in Article (121), the worker is obligated to compensate the employer for any loss he may have suffered as a result of the termination of the contract, provided that the amount of compensation does not exceed half a month’s wages for a period of three months or the remaining period of the contract, whichever is shorter, and all of that unless there is a provision in the contract to the contrary.