If you're looking to start animating, I think it's easier now than ever before only because the technology that we have access too makes it so much more accessible. All you really need is an animation app like animation desk to start putting stuff down. i would say just go for it! Animate any weird thing that might come to your mind and start feeling comfortable putting drawing together in a timeline.
You can also do animation in photoshop with the timeline tool. TV Paint is a much more involved program which will alllow you to make an entire short. But for starters, I recommend just keeping it super simple and easy. Krita is another piece of software which is great and easy to use. Look into all of these but don't get too overwhelmed. It all comes down to putting something on that blank sheet of paper and seeing what happens! Once you get the animation bug, you're hooked for life haha.