Hold for as long as you can. Before doing any pull-ups unassisted, try doing them using a long resistance band to support your weight. “As you get stronger, use a lighter band for less support ...
Resistance band workouts are great for anyone ... Keeping your upper arms glued to your sides, pull the band up toward your shoulders into a bicep curl, then release back to the starting position.
In the case of pull ups, that’s when you fight gravity to lower yourself to the bottom position. Focusing on that portion of the exercise and using some help from your legs to get back up to the bar ...