Hello and ignore the tired and burned-out!
Teaching is a wonderful job. You will work very hard and reap very big rewards (none of them financial). Contact your closest university and see what it would take to get a Master's in Education, once you've identified what type of teaching you'd like to do and where you'd like to do it:
Elementary School? Middle School? High School? Private school, Public school, International School? Special Education? Teaching English to Speakers of Other Languages? Specialist Teaching (art, music, physical education....)
Can you work AND go to school?
Is there a career-switcher program at your local university?
A couple of links which may be helpful to you:
https://work.chron.com/become-teacher-after-being-attorney-19250.html
https://www.telegraph.co.uk/education/educationopinion/12108040/Lawyer-to-teacher-Meet-the-career-changers.html
http://www.top-law-schools.com/forums/viewtopic.php?f=3&t=191946
https://www.teacher.org/how-to-become/
Best of luck to you! You can make a real difference and investment in the future!