One of the challenges I’ve ever met is the addition and subtraction test in my elementary school. With the help of my mother, I did a lot of calculation and practiced solving the same math questions again and again until I could do it correctly. From this experience I learned the spirit of never giving up even if I was not capable. To overcome the barriers such as cooking meals as well as getting along with my working, I keep to the principle of practicing a bit everday and practicing from simple to complex.