I WANT TO CREATE AN TREND FOLLOWING EA BASED ON SIGNALS FROM AN INDICATOR

The system is based on the indicator Nik_PSAR_2B 

The EA should work as follows :   

1. The EA should open a trade whenever the Yellow dot appears, indicating the beginning of a new trend.

2. The current dot should be used as the stop loss and should trail the current trade.

3. When the yellow dots change sides, indicating trend change, close current trade and open a new trade and trail the trade with the current dot ( as in 1 & 2).  

4. Input prompts : - Lot size 

                               - Auto lot sizing ( on/off)      // automatic initial lot size based on account balance ) 

                                - Auto lot size %                   // if auto size is set to TRUE, determine the % of the initial lot size based on account balance 

                               - Lot size factor (on/off)       // Multiplier of the lot size for the next trade if current trade closes in loss. 

                               - Audible alert when a trade is taken (on/off)

                               - Send an email when a new  trade is taken ( push notification)

5. If current trade closes in loss, the new trade should open with lot size = lot size x lot size factor ( ex. if current lot size = 1, and lot factor = 2,  new lot size = 1x2 = 2 )  

 if the second attempt wins, the lot size should be reset to the original lot size before the multiplier was applied. If the second trade is also a loss too, continue with the second lot size until a win trade is recorded, then reset back to original lot size. 

I hope this is clear guys. 

Thank you in advance