RSI Strategy - Tanner

Hello everyone, this is my first script on TV. I have done some research on cryptocurrency strategies and much of which has been in technical indicators by combining trend and momentum analysis together. Pine Script is quite a difficult language to learn as opposed to Python.

Anyways, I made some adjustments for the RSI strategy to include a stop loss/take profit and added indicators upon the first initial overbought and oversold levels(70 and 30 respectively). Please DO give me advice or recommendations. Primarily, I am confused as to what metric the stop loss and take profit parameters are using as they do not change when the values are changed in the input. I am unable to tell whether the strategy repaints. Could someone explain why repainting typically occurs in crossovers?

*DISCLAIMER*
This script is merely to help myself and others learn about the Pine Script language. I would not advise you to use this script for live trading. Thanks!