EA base on X previous candle price

I need some expert developer help to code this EA

The concept is very simple, base on only price and candle

The problem is not about EA characteristics, but must be smooth for place position whenever signal happen, and it can be run well for at least 28 pairs at the same time and time frame is at least H1, up to D1, I need developer should try it on demo well before complete job

I have already the EA but it can’t run well, please refer attached images

And I need 3 days for testing to make sure it also run well on my platform

I want the management panel as below (underline):

Please refer the set up image attached

--- General ---

Lots: 0.01 (default)

Take Profit: --- (default 500, if =0 == > no setting), by points

Stop Loss: --- (default 250, if =0 == >no setting), by points

Close On Reverse Signal: True/False (this item activates onlywhen opposite trade happen, for example: when buy position is running, only close when sell position happen)

Wait for Bar Close: True/False (True: order place only when bar close)

Max Trade: 10 (0 means no limit, >0 means limit maximum trade)

Allow trailing stop: True/false

Trailing activate: 500 points, (means if price hits 500 points profit for example, trailing stop activates)

Trailing distance: 400 points, (means if price hits 500 points profit, trailing stop activates, and distance for trailing is 400 points etc. == > profit keeps at least 100 points)

Period: 20 (X-Y = 20 candles, current candle is next after Y)

--- Trade Activation ---

--- Long Position ---

Highest close distance: 200 (points) (highest close price from X-Y vs current bar close)

Lowest close distance: 100 (points) (lowest close price from X-Y vs current bar close)

Buy happen when bar close with price lower than highest close price 200 points, lower than lowest close price 100 points

--- Short Position ---

Lowest close distance: 200 (points) (lowest close price from X-Y vs current bar close)

Highest close distance: 100 (points) (highest close price from X-Y vs current bar close)

Sell happen when bar close with price higher than lowest close price 200 points, higher than highest close price 100 points

Thank you