I did not write an indicator, but an, EA.
It is an automated trading system (or a "trading robot").
Because all the indicators you use are standard MT4 indicators.
I attach a template for you.
If you don't know how to use an EA.
Open your MT4 Data folder.
Under the MQL4 folder, open the "Experts" folder.
Copy the ex4 file to this "experts" folder,
Restart MT4 or right click on experts in your navigator pane, and click on refresh.
Drag the EA to the chart you want it to trade on.
Select your inputs, click, "ok", and you're done,
If you need more help, let me know please.