probably that will be "don't be so naive and kind to everybody because not every living person deserves it,and...listen to you mother when she tells you that you'll get hurt by the ones you trust the most when you least expect it"...:D

I miss you. :(

Everything you do is right. Every change is for better future. Don't be afraid)))

May I make a suggestion about the wording of (about the way you worded/about the words you used to ask) your question? if you could go back in a pass time and tell younger self something,what would you say? IF YOU COULD GO BACK IN TIME/IF YOU COULD GO BACK TO THE PAST AND TELL YOUR YOUNGER-SELF SOMETHING .... My answer: Stop looking at all the cute girls and pay more attention to your studies.