Getting yes & no buttons to work in MsgBox

I think im missing an "IF" or "=" but spent hours now trying to figure this out but cant

Private Sub email_Click()

Dim resp

resp = MsgBox(vbTab & "Click YES if you would you like to view common issues?" & vbCrLf & vbTab & "Or" & vbCrLf & vbTab & "click NO to email the cost model along with an issue/query?" & vbCrLf & vbTab & "Or" & vbCrLf & vbTab & "click CANCEL to return", vbYesNoCancel + vbQuestion, "User input part help?")

If resp = vbNo Then
 '
 ' email Macro
 '
 '
 '
 ActiveWorkbook.Save
 'Optional parameters for xlDialogSendMail are: Recipients, Subject,
 Application.Dialogs(xlDialogSendMail).Show "name@company.co.uk", "Cost Model Query"
End If
 
If resp = vbYes Then
Yes = MsgBox(vbCrLf & vbTab & "Please make sure you have done the following:" & vbCrLf & vbTab & "" & vbCrLf & vbTab & "1. Enter Category & Customer in cells C1 & C2?" & vbCrLf & vbTab & "2. Enter all information required in the part input box?" & vbCrLf & vbTab & "3. Filled all required entries in blue cells & packhouse info section?" & vbCrLf & vbTab & "4. Calculated labour hours per case in calculator tab?" & vbCrLf & vbTab & "" & vbCrLf & vbTab & "If you still require further help please email.contact name" & vbCrLf & vbTab & "" & vbCrLf & vbTab & "Email. name@Company.co.uk" & vbCrLf & vbTab & "Tel. ", vbOK)
End If

If MsgBox = vbYes Then
'email Macro
ActiveWorkbook.Save
'Optional parameters for xLDialogSendMail are: Recipients, Subject,
Application.Dialogs(xlDialogSendMail).Show "name@company.co.uk", "Cost Model Help"
End If

End Sub

Basically i want to display the box "help? continue to common issues, email to email, cancel to return

If they then go common issues and decide to email i want the user to email, if they think "yes the common issues help i want to go back to the sheet, then go back to the sheet?????