How can i be smart and stop others to disrespect me ?

Right mate the first thing you need to do is get some self respect , your name for example "loser_soul" indicates that you see yourself as a loser and so no one else is going to respect a guy who does not respect himself so choose a confident sort of name and think better of yourself , you will be loser all your life if you think yourself into that position. So remake yourself into a new person diss those jerks right back be cheeky and don't take crap , girls like a guy who stands up for himself it doesn't mean that you need to get violent or anything like that , but speak your mind and give your opinion and stand up for what you think is right. Others will always disagree and argue with you thats life, just let them say what they think and you say what you think , don't become a wishy washy wimp you talk back to them , be a man with self confidence and over time people will respect you and then move away from losers and get people in your life who are fun to be with.