Couple things to consider: money, time, support from family. Going back to school is not easy. If you don't have all of the above in place, it's not going to work.
Now on the positive side - you will always regret not going to law school. And the longer you wait, the harder it gets to go back. If you wait 5 more years, you will only be 5 years older and not a lawyer. If you start now, in 5 years you will be 5 years older with no regrets.
Good luck. Talk this through with family, friends, college counselors.