I had writers block for 8 years - which nearly destroyed me creatively and confidence wise. Still peiceing it back together. I took a slightly different road (always the hard one with me

) a very spiritual one. I realised all my best music was done when I was in a kind of trance almost like a meditation. So I approached it from that angle as if I were going to meditate. Through the 8 year I was still writting about 2/3 tracks a year. I recorded and kept them all. and slowley but surley came out of it. Now i'm really prolific writing about 5/6 tracks a year

.
I guess what i'm saying is that everyone has different triggers that allow the 'magic' to happen it's just figuring out what they are and respecting them and music enough to allow the space to happen. It litterally becomes like a ritual. Wether it's running a bath or tidying the house or meditating, having a moment or two when your not engaging your brain to think and to let rest is wonderful because it allows the magic to speak and be heard. And enjoy it, if grinding away at nothing at it aint that good anyway , come back tommorrow. If your grinding away and it's handels messiah , hang in a bit longer thumbsup .
I always find reading philisophical based spritual books help me - wish I could say it was porn and be all rock and roll, but I look start lookin at titties then thats pretty much all I can see for the rest of the day
I was talking about similar things to a friend of mine the other day DD, and we talking about plateaus are like the end of levels on platforms games, the higher the level the bigger the demon the greater the reward. Music is like a wild horse, bucking and twisting, seeing wether your worthy enough to hang on reap the rewards.
Good luck man and let me know how you get on.
David.