you should do some contour drawing! pic out your favorite cartoon character and draw them or get a bunch of random objects and draw them. idk if you like to draw comics but try to make your own comic. try to draw a moving object. draw a really specific moment in time that you remember.
There is a rule of thumb that you need a tripod if your shutter speed is greater than your lens's focal length: 1/50 for a 50mm lens, or 1/250 for a 250mm lens.
