Fishing is just doing it over and over and over. 8x8's work just fine but there are other ways. You can use C2's dungeon and shore fisherman to fish from shore until you hit about 60 then use TM's FAF to get to gm-120 and gain a lot of MIB's as you gain in fishing. I have worked up several this way.
C2's Dungeon and Shore Fisherman
http://www.scriptuo.com/index.php?topic=7698.0TM's Full Automatic Fisherman
http://www.scriptuo.com/index.php?topic=41.0