There is a shortage of teachers now, but graduates are getting higher and higher, so it is definitely difficult to find a job with a diploma for one night.
I suggest you get a bachelor's degree at the same time as your diploma, which will be much better. If you have the energy, continue to study in-service graduate students. This will give you an advantage in finding a job. The school also hopes to recruit teachers who are self-motivated, and what graduate students are reading is the most pleasing, hehe.
Of course, everything is subject to your teacher qualification certificate. You can't take the exam without a college diploma or above.
I hope it helps you.