Step Gain Method BTC-USDT % Change Buy and Sell

[orcus]

Hi guys

I have a strategy and I need help.

Buying and selling with a percentage change.

BTC-USDT

When the price drops by 1%
Order purchase with 0.50% lower price
The order is open for 15 minutes
Cancel if not in 15 minutes
Enter sales order with 1% profit if it happens
Sales order will remain open until sold

If the market is negative, wait.
Continue if market is active

I am asking for help as the coding is not information.