want to create ea and still learning please advise

Hi All Senior , I am very new into Mql4 code . Would like to seek for advise about coding , Appreciate anyone can advise and teach ...... Thank you and sorry if the code is messy

i wanted create an EA that following

entry : Buy Stop order at last 3 candle high above 300 point ( include wick)

entry : Sell Stop order at last 3 candle low below 300 point ( include wick )

once entry one buy/sell opposite pending cancel

if buy > sell limit order will place following last 2 candle lowest 300 point ( include wick )

if sell > buy limit order will place following last 2 candle highest 300 point ( include wick )

sell/buy limit order will reset and move follow new 2 candle highest/lowest, once candle touch limit order opposite active order will close



my example:

struct candlesticks

{

double open; // open price

double close; // close price

double high; // high price

double low; // low price

datetime date; // date

};


void OnTick()

{

// if no open orders exist

if (OrdersTotal()==0)



// send a sell limit order

int buyticket = OrderSend


int Mode = OP_BUYSTOP;

double Entry=NormalizeDouble((Open[3]),MODE_DIGITS);

if (Ask > Entry && Entry > 0) Mode = OP_BUYLIMIT;

if (Entry == 0) {Entry = Ask; Mode = OP_BUY;

}


void OnTick()

{

// if no open orders exist

if (OrdersTotal()==0)



// send a sell limit order

int sellticket = OrderSend


int Mode = OP_SELLSTOP;

double Entry=NormalizeDouble((Open[3]),MODE_DIGITS);

if (Bid > Entry && Entry > 0) Mode = OP_SELLLIMIT;

if (Entry == 0) {Entry = Bid; Mode = OP_SELL;

}


int Mode = Close

double Close=..................................................................................