In my opinion, I don't fit into the service job. I worked many part-time jobs for about 5 years. For example, academy teacher, assistant, pasta restaurant, pork restaurant, and so on. Communicating with a large number of strangers while working is a pleasant experience, but it has also made me feel tired that I must meet the needs of my customers. I don't hate cooperation, but if I ever get a job, I'd rather deal with medical devices related to my major than deal with people. So I wouldn't work in a service job.