You already have some great advice. I would add to get a watch with maps and turn by turn directions. It saved me many times when I came up on trail junctions and wasn't sure which to take.
If you don't do any weights I would recommend adding some leg work like Bulgarian split squats and dead lifts to your repertoire to strengthen your legs.
I might have missed where you are but if you are anywhere that has a lot of deer ticks do not take Lyme disease lightly. I always, even in winter, spray exposed skin with repellent and do a self check after each run to be safe. Have one of
these in your car to be safe.
Be more mindful of the forecast and time of day you will run. There are a lot of variables on a trail and you may find yourself out longer than planned as temperatures or weather change. If you are in a place where being out an extra hour in the evening means a big change in temperatures bring a pack-able jacket or heavy layer.
The trails are awesome but do require a little more planning if you are anything more technical than a fire road or flat bridal trail.