Ok so I just tried to make deck that i thought would be fun to play.

http://www.cardgamedb.com/index.php/GoTDecks.html/_/baratheon-decks/asshai-in-shadows-r2932

However my deck is a huge 81 cards.

So I could use some advice, what can I cut or should I cut to trim it down or should I add some cards and play the "The Long Voyage" Agenda.

thanks a bunch for any advice.

Well without even looking at your deck, I can tell you the Long Voyage can only be used with the neutral house card (as of the most recent fantasy flight FAQ) so you should definitely just trim it down.