Weakness is a fault, soft spot, defect or a shortcoming. It is a common characteristic of all humans irrespective of race, gender, social rank, achievements or intellect. Therefore, there is no perfect human being anywhere in the whole universe.
Some of the weaknesses that people possess are short temperament, talkative, emotional, procrastination, bossy, lazy, wasteful, naive, selfish and so on.
Your shortcoming is what makes you unique and human. There is no need to be ashamed of it or allow someone put you down because of it. However, it is good to identify those areas of your life you have some shortcomings, embrace it and devise a good plan to work on and improve on it.