This agreement is obviously illegal. The so-called training fee cannot be counted in the salary. The training fee must be the actual cost of specific training, so the agreement in this contract is invalid. You have nothing to be afraid of. If you want to resign now, you only need to inform the employer 30 days in advance, and you don't have to pay the rest. If the unit deducts from the salary you should settle, you can appeal to the arbitration commission.