Pine script in trading view

hello everyone, hope you are well

USING Pine script in Tradingview:
I need alerts when the candle closed above 50 moving average.

Also, I need a screener that shows the symbols that above ichimoco cloud

And I need to do backtesting for this strategy


I don't need you to do this for me I want you also to teach me how you make it
I will pay hourly
I have a good background in programming

Thanks