Trouble moving stop to pivot points?

What Im trying to get my EA to do is move the stop to each previous pivot as price moves into profit but without being slowly trailed. 

// Input variables                
input int MagicNumber = 101;                          
input int Slippage = 10;

input double LotSize = 0.1; 
input int StopLoss = 0; 
input int TakeProfit = 0;

input int MaPeriod = 200;
input ENUM_MA_METHOD MaMethod = MODE_EMA;
input ENUM_APPLIED_PRICE MaPrice = PRICE_CLOSE;

// Global variables
int gBuyTicket, gSellTicket;
datetime time = iTime(NULL,0,0);  
double yclose = iClose(_Symbol,PERIOD_D1,1); 
double yhigh = iHigh(_Symbol,PERIOD_D1,1); 
double ylow = iLow(_Symbol,PERIOD_D1,1); 

double pivot = MathAbs((yhigh + ylow + yclose)/3);  
double S1 = MathAbs(2 * pivot - yhigh);
double S2 = MathAbs(pivot - (yhigh - ylow));
                        

// OnInit() event handler     runs once at start of program when its initialised
int OnInit() 
{
   bool r1line = ObjectCreate("r1line",OBJ_HLINE,0,time,R1); 
   bool pivotline = ObjectCreate("pivotline",OBJ_HLINE,0,time,pivot); 
   bool s1line = ObjectCreate("s1line",OBJ_HLINE,0,time,S1);  
   bool s2line = ObjectCreate("s2line",OBJ_HLINE,0,time,S2);   
   return(INIT_SUCCEEDED);
}

// OnTick() event handler    runs and evaluates code on every price tick
void OnTick()
{
   
   // Current order counts     
   int buyCount = 0, sellCount = 0;
   
   for(int order = 0; order <= OrdersTotal() - 1; order++)
   {
      bool select = OrderSelect(order,SELECT_BY_POS);
      
      if(OrderMagicNumber() == MagicNumber && select == true)
      {
         if(OrderType() == OP_BUY) buyCount++;
         else if(OrderType() == OP_SELL) sellCount++;
      }   
   }
   
   // Moving average and close price from last bar                Section 3
   double ma = iMA(_Symbol,_Period,MaPeriod,0,MaMethod,MaPrice,1);
   double close = Close[1];

   // Sell order condition
   if(close < ma && sellCount == 0 && buyCount == 0 && gSellTicket == 0)    
   {
      // Close buy order
      for(order = 0; order <= OrdersTotal() - 1; order++)
      {
         select = OrderSelect(order,SELECT_BY_POS);
         
         if(OrderType() == OP_BUY && OrderMagicNumber() == MagicNumber && select == true)
         {
            // Close order
            bool closed = OrderClose(OrderTicket(),OrderLots(),Bid,Slippage,clrRed);
            
            if(closed == true)
            {
               gBuyTicket = 0;
               order--;
            }
         }
      }
      
      // Open sell order
      gSellTicket = OrderSend(_Symbol,OP_SELL,LotSize,Bid,Slippage,0,0,"Sell order",MagicNumber,0,clrRed);
      gBuyTicket = 0;  
   }

   // BreakEven Stop Management all within the OnTick() event handler       
   for(order = 0; order <= OrdersTotal() - 1; order++)
   {
      select = OrderSelect(order,SELECT_BY_POS);  
      
      if(OrderMagicNumber() == MagicNumber && select == true)
      {          
         RefreshRates();

         // Check sell order for stop placement
         if(OrderType() == OP_SELL)
         {        
            if(Ask <= S1)  
            {
               bool pivotstop = OrderModify(OrderTicket(), OrderOpenPrice(), pivot, OrderTakeProfit(),0);
            }
            
             if(Ask <= S2)  
            {
               bool s1stop = OrderModify(OrderTicket(), OrderOpenPrice(), S1, OrderTakeProfit(),0); 
            }                      
         }
      }
   }            
}

I can get EA to move stop to pivot when Ask <= S1 with one basic if statement but problem is I cant get it to move on to the next if statement when Ask <= S2. It doesn't read the next OrderModify () function.

I guess its because they are both clashing as both Ask <= S1 and Ask <= S2 are true.