Over the years I have collected many art practice tips. When I feel tight and off track I use this list to loosen up my painting.
Enjoy the process, have fun and experiment.
AMS - Avoid Masterpiece Syndrome. Don't pressure yourself into thinking every painting has to be a homerun. If you aren't happy with the end result you can always get more paper or paint over a canvas.
Try working larger and aim to fill the entire space.
Use larger tools like bigger brushes and large pieces of charcoal or pastel.
Use the whole tool not just the tips.
Avoid drawing shapes and filling or coloring in.
Try to put the color down in one stroke.
Try a rougher surface. The rougher the surface the harder it is to put in details.
Stop painting when you start to repaint areas.
Forget the details and compose with large shapes.
Accept what the painting gives you, embrace happy accidents and go with the flow.
I hope you will give these ideas a try and add them to your own collection art practice tips.