Sometimes if you’ve been working steadily in one medium it’s good to take a break and do some sketching with a totally different medium.
I’d been sketching so much with pen and watercolor before the Minnesota State Fair that I decided to start a sketchbook for color pencil quick sketches. (I say quick sketches because I know I’ll never have the patience again for the detailed, layered color pencil works I did in the 1980s and 1990s. I know you’re never supposed to say never, but I feel sure this is the case!)
For me quick sketching with a pencil allows me to feel around some shapes and play with looseness.
If you are already working loose your medium might be one which you can use more tightly.
I find these types of breaks useful because it helps clear my mind when deciding which materials to take to an event like the Minnesota State Fair.
These breaks (which can last for one sketch, 10 sketches, or a week or more) also allow me to bring new enthusiasm back to my favorite media. You also might find new combinations of media to go forward with.