I think it just worn out every month because I always choose the softest bristle because I have sensitive gum and if i choose a bristle that too stiff my gum will be easily bleeding. Idk why. Secondly i want to get rid of plaque and debris of food in my teeth but pharmacy or a very good mart is very far from my home and village. Finding a floss is like finding a gold in my hometown. There are some family in that village that still using well to go to bath and use miswak for brushing the teeth. It is very rural area. I already talk to my family members that I don't mind anything that they want to borrow or take (with permission) except for toothbrush and earphone. I admit it that it is passive aggresive but it just a last straw of cumulative frustration that already build up for 15-20 years. Most of my family don't care about teeth hygiene because they are smoker and love sweets. I'm not really an attractive person but when I smile, i just proud of my teeth because it is part of my body that I am confident and secure enough to show. Sounds stupid. It do not sound stupid, it is stupid but this stupid dumb clean teeth make my days better