VBA Excel Incremented worksheet name Add After Statement using a stored variable sheet name - excel

Question

How to add a worksheet in excel with VBA after a specific sheetname held by variable?
I tried:
Set sh = wb.Worksheets.Add(After:=wb.Sheets(wsPattern & CStr(n)))
The previous incremented sheetname is stored in "wsPattern & CStr(n)", The new sheetname increments up properly from another statement and variable, but the add after fails with the above syntax. I'm getting an out of range error at this line.
The code fully executes using this statement, but adds any newly created sheets from any given series at the end of all sheets:
Set sh = wb.Worksheets.Add(After:=wb.Sheets(wb.Sheets.Count))
As the workbook has 4 series of sheet names now (e.g. Test1, logistic1, Equip1, Veh1, etc.) that are incremented up as they are added, the next incremented sheet for a given series needs to be added to the end of that sheet name series (Equip2 should be after Equip1) and not at the end of all sheets.
Sub CreaIncWkshtEquip()
Const wsPattern As String = "Equip "
Dim wb As Workbook: Set wb = ThisWorkbook
Dim arr() As Long: ReDim arr(1 To wb.Sheets.Count)
Dim wsLen As Long: wsLen = Len(wsPattern)
Dim sh As Object
Dim cValue As Variant
Dim shName As String
Dim n As Long
For Each sh In wb.Sheets
shName = sh.Name
If StrComp(Left(shName, wsLen), wsPattern, vbTextCompare) = 0 Then
cValue = Right(shName, Len(shName) - wsLen)
If IsNumeric(cValue) Then
n = n + 1
arr(n) = CLng(cValue)
End If
End If
Next sh
If n = 0 Then
n = 1
Else
ReDim Preserve arr(1 To n)
For n = 1 To n
If IsError(Application.Match(n, arr, 0)) Then
Exit For
End If
Next n
End If
'adds to very end of workbook
'Set sh = wb.Worksheets.Add(After:=wb.Sheets(wb.Sheets.Count))
'Test-Add After Last Incremented Sheet-
Set sh = wb.Worksheets.Add(After:=wb.Sheets(wsPattern & CStr(n)))
sh.Name = wsPattern & CStr(n)
End Sub

Answer 1

Create a function
Sub Demo()
Dim s
s = AddSheet("SeriesName")
MsgBox s & " Added"
End Sub
Function AddSheet(sSeries As String) As String
Dim ws, s As String, i As Long, n As Long
With ThisWorkbook
' find last in series
For n = .Sheets.Count To 1 Step -1
s = .Sheets(n).Name
If s Like sSeries & "[1-9]*" Then
i = Mid(s, Len(sSeries) + 1)
Exit For
End If
Next
' not found add to end
If i = 0 Then
n = .Sheets.Count
End If
' increment series
s = sSeries & i + 1
.Sheets.Add after:=.Sheets(n)
.Sheets(n + 1).Name = s
End With
AddSheet = s
End Function