Help please in manipulating controls in Visual Basic 2015

I want to create a simple program. I just need help in Visual Basic 2015. What do you mean by “naming convention?” Can you give me example for this? How to rename a control? Can you show me step-by-step in changing the properties of any specific control? Can you show me how to add codes in my program? How to save projects also in Visual Basic 2015? How to save files? What are the properties commonly used in textbox and labels? Any response will be appreciated. Thank you!
