How to remain with faith, when monks commit suicide in modern times?

Some monks end their life not in protest of oppressive government, but because of a wish to end their life. For example Bhikkhu Samahita, who ended his life a month after his father died. Monks, who are much deeper into the dhamma than myself, killing themselves due to suffering, strikes worry in me. Previously I was in comfort of believing that people who are ahead of me on the path feel relatively free of suffering. It motivated me to keep going. But with hearing that buddhist monks are seemingly plagued by the same suffering, I am starting to reconsider whether the dhamma is sufficient in handling suffering or not. How to reconcile?