For me, 20 means the start of climbing that ladder to success that I have taken 20 years to build. The thing is I havent finished building that ladder and I am starting to doubt the stability of that ladder. Recently, my last semester's result really gave me a slap in the face. I have been slacking off and that makes my scared. Scared I wont be able to fortify my ladder to bring me to the top and I will just tumble down like Humpty Dumpty.
20 also means responsibility, more independence. Independence as in I must be able to feed and take care of myself without relying on my parents anymore and be responsible of my well-being. Taking care of my parents...maybe later after I am able to take care of myself.
But if you ask me whether I want to turn back time and be 10 again. My answer is " HELL NO! ". Why move back and repeat things you already done? I say we go forward and do things we never do before!