Hr recruits 20 people a week. Is it big?

Shit. It's too big. I also work in the human resources department. To be honest, HR should be a gentle job, not a hectic job. What you are doing now is not HR, it is purely telemarketing, and the company takes you as a coolie. You can't learn anything from this job, can you? This industry is the most difficult to recruit people, unless fresh graduates are willing to try this kind of work. I suggest you jump ship quickly. Painful work