An APP design engineer starting from MQL4 which is a trading tool program in 2021 this quite a tough year. A long story begins my investment which is forex trading in the MT4. In the MT4 you can build a robot working automatically in the trading markets by MQL4. then, I join the APP design class to make me able to understand faster software industry, the class is basic in Java, SQL, and Andriod studio. After finishing class, I am learning GitHub and Swift.