I know exactly how you feel, I remember the day right when I got Pokemon Diamond and I played it all night!
Then my cousin had Pokemon Pearl and we went onto the Internet and looked up AR codes, so we could get Darkai and whoever.
I remember me screaming with excitement when I caught Darkai, my cousin was shocked. He was like - "no way man!" Then I said yeah, I caught him! Good times. I can't believe that was nearly five years ago!
Where did the time go?