Hi @Shariku
The reason all your trades start out slightly negative is due to the spread, which is the difference between the bid (sell) price and ask (buy) price in the market. If you buy to open a trade, then you must sell to close it. If you sell to open a trade, then you must buy to close it.
Therefore, you must overcome that price difference in order to break even on your trade. The spread varies from one currency pair to another based on liquidity and market conditions. As an example, you can see our live spreads http://on.forex.com/2xKhFom
Note some forex brokers may charge you a commission in addition to the spread. In this case, you must factor in your total transaction costs (both spread and commission).