Yea man, writers block is a bitch... The way I work through it is I start listening to new music, a new artist, etc. It usually jars me out of writers block and gives me some inspiration. I also find going back and working on old, maybe unfinished pieces help me out a bit, change something around with it, and bam, it's a new piece. I am sure you've got TONS of music you've fucked around with in the past that you've completely forgotten about... find those tracks and see if something is rekindled.

Be blessed man!