Repeat Insert Row And Formula For Selected Cells

I am in the process of developing a budget template for next year and here is what I want to accomplish through Macro to avoid the tedious mannual manipulation process (hope that's achievable). BTW, I am only an entry-level Macro user who has no background in coding.

I have attached an Excel sample but let me explain:

In each of the expenses tabs (1, 2, and so on (only 1, 2 given in the sample)), I want to be able to select a range of the data cells (A19:Q34 in "Expense 1" and A10:Q28 in "Expense 2") and run this Macro so that:

1. 10 blank rows be inserted between selected data rows

2. A sum created for each month from the four rows below) with different color

3. A Year to Date Actual and To Year End Forecast created based on the VLOOKUP of the "P&L" matching the account code by month

4. Finally grouping of the first 9 rows.

the above is what I have manually created for the first account code in the "expense 1" tab. I have 7-8 expenses groups and about 200 account codes. So mannually creating the above for each expense groups is not that terrible if this will make life easier for Macro.

I would think this is a very typical Macro issue but can't really come up with anything.

The other issue I ran into the VLOOKUP for the YTD Actual and TYE Forecast. It is to look up accont code in the "P&L" tab and match the #s. But the column numbers in the VLOOKUP do not change automatically when I copy across. Thus I have to change mannually, which is really a pain in the butt. I also know I can't copy down because that will change the account code that I want it to match. Because to be able to copy the VLOOKUP formula across the same account code, I need to use the $ to fix the account code. But to copy down I think I need that to be without the $ sign. Any solution on that?