A changed person, am I?

I don't know who I am now... I felt that i have changed... but i don't know how I have changed... Most probably my lifestyle and mentality... Have i became better or worse, that is up to the individual to interpret... All i can say is, i like some part of it, but dislike the others...
Kinda weird to say that i can't read my own mind and heart... Uncertain with myself, a coward in facing the truth... But on the other hand, i felt that i have learned to express my feelings verbally better than before... and i think I'm getting more and more talkative... or maybe just to certain groups of people... Maybe i just don't care too much of what people think of me anymore... but sometimes i would just keep quiet without having the initiative to start a conversation when I'm with my friends... I'll be buried deep into my own thoughts...
I really don't understand myself anymore... Hope to understand myself through other people... But no matter good or bad, I'll take it with an open heart ^^