Is there a difference between how you are now and who you used to be...??

Ofcourse there are alot of differences, the you grow up the more responsible you becomes.

i have became even more disciplined and more confident in my life nowadays than i was ever before in my whole life

Off course there is. People are always evolving and personality changes even if you think you still the same. That is life, an constant evolution, always changing and always adapting to new difficulties and new challenges.

I think i'm getting more serious. Last year evething was like just a joke but now i actually start thinkiong about things more. about where i am going and what I want to do with my life.

Generatly,I haven't found any difference between how I am now and who I used to be,because I'm confident all the time and have clear distination,know what I am doing and what I should do.But thinking carefully,there is some difference more or less,after all,I am growing.Maybe I'm more mature and know more about the society,know how to deal with a lot of social business,know how to confront the love problem.