Hello. I joined a worldwide pen pal app. last November. I got to know many pen pals there. I was very excited to receive letters from all over the world through the app. Every one sent me similar messages such as how was your Christmas or how were you doing, and they also wrote what they were doing. I was happy that they cared about me, and I wrote to them one by one. "I saw wonderful Christmas trees at the mall. I don't have Christmas trees at home. But Japanese people like exchanging presents with their family and friends," etc. In addition, I wrote about something to each pen pals for their customs, habits, religion, and hobbies. Sometimes I received as many as 5 long letters within 24 hours. It kept me spending at least two hours for replying letters, and I thought it was overwhelmed. I would like to finish my house chores at first, and wanted to go for a walk, and do knitting and so on. But I had to give up these acti...