Complaining is a very easy thing to do and for some people this has become a habit. If you include someone who likes to complain then know who likes your situation will not face you to be better, instead will only drain your energy and create negative feelings that do not empower yourself. Ask yourself if you have two friends, the first always say positive words and the second is always complaining, would you prefer to connect with which one? I'm sure your answer is your first friend, because everyone likes to connect with positive people whose words get up, cheer up, strengthen.
The question is why do we often complain? We speak because we are disappointed that is not in line with expectations or wants us. And you need to realize this will happen almost every day of that life that is something that does not match what we want. So how to overcome it is actually easy we just need to learn to be grateful in all the circumstances we face.
Thaks you.....