SCREEN FLICKERING WHEN I ADDED ICON IN WINFORM USING DRAWING IN VB.NET

my problem is
when i added icon inside
win form
using graphics

it is added successfully
but when
I run the program
the project
as well as the desktop
sceen starts to
flicker

what is the problem and how to eradicate this
please solve

i have attached the code

Private Sub frm_List_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
     
        PaintObj(e)

    End Sub
 Private Sub PaintObj(ByVal e As PaintEventArgs)
      

        Me.Icon = New System.Drawing.Icon("D:\new\Calculate\Calculate\Resources\setup.ico")
        Dim graphics As Graphics = e.Graphics

        Dim pen As New Pen(Color.Chocolate)

        graphics.DrawRectangle(pen, 10, 10, 200, 100)
        graphics.DrawLine(pen, 0, 40, 10, 100)
        graphics.DrawIcon(Icon, 30, 100)





    End Sub

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