prices for the project you want to invest or trade on; Experience also helps, so continue to trade, learn lessons and become better
Trading is all about loose and gain but its more better when your gains can cover up for your losses. Trading requires consistency and patience. And placing an amount you can afford to loose at any point in time.
To maintain a clean earning records consistent learning should be adopted for cleaner sheet. Do a review of previous trades and taking corrections from wrong entry point and wrong analysis.