不该回去读书, 而该在家学一门能找到工作的技术. 3q!
Unless you really love to be a dentist, it is not necessarily to go that way.
Stay in home, stay with your family. In the meantime, lean some useful and marketable skill.
Then update your resume and looking for job.
Then start work.
It should take only couple of months if you follow the right way.
Thanks!