How can I add TrailingStop program with 5min on 30min EA

I'm new here. I am trying to reduce some risk of not getting profit when I can possibly close with lower timeframe.
I could not find any posts. Please help me.
for(cnt=0;cnt<total;cnt++)
{
OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
if(OrderType()<=OP_SELL && // check for opened position
OrderSymbol()==Symbol()) // check for symbol
{
if(OrderType()==OP_BUY) // long position is opened
{
// should it be closed?
if(buyclchk==1 )
{
OrderClose(OrderTicket(),OrderLots(),Bid,SlipPage,Pink); // close position
// return(0); // exit
}
// check for trailing stop
if(TrailingStop>0)
{
if(Bid-OrderOpenPrice()>Point*TrailingStop)
{
if(OrderStopLoss()<Bid-Point*TrailingStop)
{
OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Point*TrailingStop,OrderTakeProfit(),0,Orange);
// return(0);
}
}
}
}