Read this very carefully. Read this very swiftly. Read this 'Til it is engraved upon your soul forever more. This is asked of thee, self, of another Timeline.
Heed these words and obey: You will acquire Broadband eventually, afterwards you may attempt to make an account on Playstation Network, Name it well, for it's name shall be permanent. Circumstance may force you to do something else, DO NOT DELETE IT ONCE IT IS MADE! It's usefulness shall be made known to thee.
Watch as much Anime as you can, there is more to be found in there than at first glance, depending on the series, I would also have you watch an Anime by the name of 'Gurren Laggan' and take note of the characters 'Simon' and 'Kamina' Take heed of Kamina's words and learn from him, It shall aid you well.
Also, Learn how to dance. You cannot even comprehend how much it will pay off. No, I do not refer to Ballet, or Ballroom, or any such things, I do however recommended Waltz, Tango, anything romantic that requires a partner.
Lastly... Start brushing your teeth again. Seriously. Do it.
These are not my only instructions, I shall make arrangements so you and I can communicate safely and freely.
The Security Code is Contingency 41.
From the one man you trust above all others.
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So yeah, It wouldn't be a letter.... It would be a manual.