I need help for my annulment

Please kindly you cannot terminate the contract before notifying the employer in writing thirty days before the expiration date. If the contract is terminated without taking into consideration the notification period. It is important for those who terminate work contracts to pay the other party a compensation equal to the whole salary for the notification period time, or the remaining time of it.
Article 37
If the contract is unfixed-term, both parties can terminate it after notifying the other party thirty days before the actual exit. This is competent to those who get paid on a monthly basis, and a payment of 15 days for other categories. Unless, the contract stipulates otherwise. If the contract is cancelled without taking into consideration the notification period, will be obliged to pay  the other party the wage balance equal to notification period or what remains of it