Skullcrusher/Tykinruoka, we all go through non-creative periods.
My advice is to by a load of cheap sketch pads, and draw, draw draw!
Take the pad around with you, especially on the bus/train...And just draw
anything you wish...Create fast sketches, slow ones and create images of
anything you think of or find cool.
Drawing is like a sport, you have to stay in practice and sometimes you have
to push through the boundaries of a bad performance patch and get back in
shape again...I know you are a truly fine artist and cartoonist, so I would say
that you should aim for as many drawings in a day as you can manage.
It matters not about the quality, it is the practice that counts.
You will feel and see the benefits very soon...
Believe me...I have been where you are!
Give it a shot dude, and I would recommend all the cool artists
here also to do the same, drawing practice is very valuable!
