Expert Advisor Simple Martingale Midification error

because I am learning how to write simple Martingale EA , but it's too difficult for me , I want some professional can correct my code and I want to know how to control the orders . 

This is what EA should do :

extern double Mlot=1.3; //LotExp
extern double Lot=0.01; // Lots
extern double Takeprofit = 200 ; //TakeProfit
extern double Step = 250; // PipStep
extern int Maxorders = 30 ;//MaxTrades
extern double MaxLot=200; // MaxLotSize

1.When Bar[1] is positive bar and open BUY with Lot , else open SELL with Lot . 

2.When Buy order is losing Step*Point , then Buy again with Lot*Mlot(buy). Else open Sell again with Lot*Mlot(sell).

3. Buy and sell does not affect each other

4. Buy orders are modified only TP ( breakeven + Takeprofit*Point ) , and Sell orders are modified only TP (breakeven - Takeprofit*Point)

5. Maxorders to control buy orders OR sell orders maximum orders total .

6.MaxLot to control the Maximum Lotsize .

7.if Klot is less then 2 , eg , 1.4 , I want to orders of lots will be 0.01*1.4 = 0.01(0.014) , 0.014*0.01 =0.01 (0.0196) , 0.0196*1.4 = 0.07 (0.02744)

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My code is not completed . many error like Error 1 , Error 134 , Error 4108 . 

And I want to make it with no error .