I did this last year, actually.
This program is good for a novice:
https://www.halhigdon.com/training-programs/half-marathon-training/novice-1-half-marathon/Do not focus on speed, just completion and consistency. The goal here is to build a solid endurance base.
Stretch after your training and buy a muscle roller and roll once every 1-2 days. Eat a decent amount of protein. Greatly limit or cease alcohol consumption for the duration of this program. Sleep at least 7 hours/night. If you didn't already do strength training before this, it's best not to start now.
Oh, and I bought myself a GPS watch with a heart rate monitor. It was invaluable not only in tracking time and distance, but actual effort in the run so I could slow myself down to not overdo it. It's hard to tell otherwise as, for some people, that might mean to drop to a very slow pace like 12.5m/mi.
Good luck.
This post was edited by Darkblue on Feb 25 2019 07:57pm