Training institutions are riddled with holes. During the interview, you were bombed. You signed a training agreement (unilateral agreement, nominally legally binding, but actually just a piece of waste paper), and the training fee for four months is 18800 (this is the price stated by the training institution), but in fact, in the end, you will pay 2 1000+ because the training institution paid it in your name. However, the salary recommended after the training (note that it is recommended employment, not guaranteed employment advocated before the training) is not as high as promised at the beginning (most of the promised wages above 5K are less than 3K), and the loan has to be repaid every month (more than 1600 per month, 18 months to pay off, and this account is calculated by itself). In addition, if you don't graduate from computer science or have no basic knowledge of programming, find a real job as soon as possible, because the water in this industry is too deep.