Some things all beginners should know / do that will help them have a good start with VB .Net:

Set the following Options:

'can be permanently set
' Tools / Options / Projects and Soluntions / VB Defaults
Option Strict On
Option Explicit On
Option Infer Off

Public Class Form1

End Class

Use &, not + for string concatenation. Strings should be studied in some detail as they are widely used.

Spend some time understanding Value and Reference Types.

Never use Application.DoEvents. Pay attention to the ‘Caution’. When you reach a point where this seems like something you must use, ask.

The documentation is your friend.