Need to put protection module security to control licenses in VB.Net

I need someone expert to put a license control in my VB.NET application. Visual Basic. Net

I would like it to be done in some way that protects my software from copying or cracking.

I would like you to put maybe a password generator where you provide a free period of 7 days and also the plans below:

* 1 month
* 3 months
* 6 months
* 1 year
* or a period customized by me.

I need it urgently