Nerve damage and upper body strength training

I just want to celebrate for bit. I had to have disk replaced in my neck nearly two yrs ago. I have nerve damage from the bulging disk. It has taken me quite a while to be able to get to twelve pound per hand for chest flys . The last few times doing them I have been able to use fifteen pounds per hand. I go slow and methodical but I'm so happy to be at fifteen now. May not be much but I worked so very long and hard to earn it.