Simple MT4 EA modification

I need an expert who can modify my Mt4 EA which trades by scalping. The EA performance is as follow; it opens a position in either buy or sell, starting out with a set lot size and if the market is going against its prediction (The market is selling whereas theEA opened a buy) the EA keeps opening more buy positions and increasing lot sizes each time until it takes a maximum of 14 or 17 or 21 trades depending on the account size and leverage. If the market keeps going in the opposite direction, the EA won’t be able to open up more positions due to the limit. I want the EA to be able to open a reverse position when it has reached the maximum allowed positions to be opened and then increase the lot size enough to end the entire open positions and break even. Alternatively, if that can’t work, I would want the EA to be able to apply stop loss automatically if it opens maximum positions without profit.