Girls, hello everyone. Could you please tell me something? I receive t…

Girls, hello everyone. Could you please tell me something? I receive three benefits for children up to 1.5 years old, up to 3 years old and up to 16 years old. Could you please tell me what benefits to apply for and when to renew them? And also, I found out that if you get up to 16 years old, then the family is considered low-income, you need to take a certificate for milk kitchen and compensation in kindergarten, where to take this certificate?