Anyway, I should answer the question. As a single mom, taking care of myself, a 10 years old boy and visiting my mom often are quite a big job for me. I feel unhappy due to I can’t concentrate and complete the multi-tasks. Moreover, there are something I would like to learn so I decided to release some of my responsibilities. I would like to go back home with happiness and sleep well every night. I hope my reason is release your doubt.