EA to take actual bids and opposite bids automatically

Hello, I want to develop an EA that will be able to take daily bids according to my projection and have some recovery positions to take as an alternative if the market goes against my projection for the day.                   The bid will be such that everyday I will project a BUY or SELL for my product ( which is 18 in total for now, addition can be made in future so I should be able to select the products I want for each Account).  In addition to the decision of buy or sell, I will set a minimum alternative gap for each product daily. So the EA will update the daily high and low position in real time and will use that to project the alternative bids to take if need be.                                                                For example if Gold alternative gap is 25, and bid gaps is 10. And the current price is 2500, with a SELL decision. If current day high is 2502 and low is 2490. Then I expect the EA to act as follows using this first information       EA will SELL at 2500 and take a BUY at 2515 ( ur 2490(current low) + 25 (alternative gap). And future buys at every additional gap of 10 from the first buy ie 2515, 2525, 2535, 2545 etc.   And the profits can close automatically as set by the system or manually.                    If market daily low price changes from 2490 to 2450, the EA will automatically adjust to the new low price and recalculate the bids for the alternative by taking new BUY bids at 2450 + 25= 2475. And a gap of 10 afterwards at 2475, 2485, 2495, 2505 etc.                        Same condition will apply if the direction is opposite. All conditions will start to apply based on my first action and decision on the product. So if I take a BUY bid on the product, the EA will identify the high and low price for the day and using the gaps calculate the alternative positions in advance and will adjust itself as the high or low price changes for the day.