My father touches my private parts

You should tell someone immediately. If you feel that you cannot tell this to your mother then you must tell a grownup that you trust or even a teacher but you cannot let this continue. You must just remember that what your father is doing is very wrong and it is not your fault and when you tell someone he will also get help. I cannot tell you enough that you MUST not allow this to continue and even though it is very difficult to talk about something like this you must do it.
On this page are the numbers for Lifeline/Childline and you can call them for free on their toll-free number. Take care. You are so very important to me and the people around you that love you that you must not keep this bad thing to yourself but get help for yourself and for your father.