need help-the techneque of writing

[metal bass man]

i've been playing bass for 6 years now and 2 years of lessons but i can't seem to write my own material (preferably metal, but anything will do) i dont know why? ive got good techneque (love vibratos and hamer-ons) and can play fast and smooth but i still can't make up any good metal stuff???

[Mingus]

Theory!
You won't get lucky and write something awesome, it takes hard work...or so I've heard...

Merry Christmas!

[Ramstien]

Find basslines of songs that you like, then innovate.

[dhemstra]

what really helped for me was learning to play a chordal instrument (eg. guitar, keyboard)

~ Dennis

[Beast]

+100 on the chordal instrument ,honestly I'd say go with Piano, but if that's not available due to financial/spacial issues, go with a classical guitar. +1000 on theory, and I am a big supporter of using ear training to write stuff as well. It becomes much easier to transfer your ideas from your head to your instrument when you know what the intervals sound like.