Welcome to Steemit, thanthitv! Best wishes for a very wonderful journey here in this loving and caring community :) Cheers!
By the way, there are several groups you as a newcomer can join. They will stay with you for your journey, helping and mentoring along the way.
@greetersguild invite link https://discord.gg/AkzNSKx
@newbieresteemday invite link https://discord.gg/2ZcAxsU