A few ideas on making pull ups easier.
1. I am losing fat and it helps. Not muscle, just loosing fat

2. Hanging in the lower position helps. Hanging in the upper position (chin above bar) really helps.
3. Start by breathing and retracting your shoulder blades. It keeps the shoulders safe and makes you more stable.
4. Doing pulls with one hand in each hold (palms facing each other) makes you better at both but in a less stressful way on your joints.
5. Warming the wrists by making fists and bending them forward and back helps in circulation and keeps you healthier.
6. Doing pull ups on a beam strenthens the shoulder part of the movement and removes some tension from the forearm.
7. Doing constrolled negatives for a specific count makes for better progress. Try for repetition where you decend to earth

for 10 breaths or seconds. Make each parameter count.
8. Small sets often create greater neural progress and less fatigue.
Keep safe,
Sharon