help me with pine script backtesting issue

Hello there! I'm looking for help with a Pine Script backtesting issue. I have an existing script that needs some work, but I'm not sure how to go about debugging it as I don't understand the scripting language. I need someone with a solid understanding of Pine Script to help me out with this task.

What I am needing: a template that I can paste into indicators i have built that provides me with stop loss and target price starting from an initial capital amount.