To start, I'll go over some basics with y'all (If you haven't noticed, I'm from the south). Most important thing to do is draw LIGHTLY, I can't stress that enough. If you bear down too hard, you'll make indentions in your paper that mess up your art. Also, put a few sheets of paper inbetween the sheet you're drawing on and the table. First you should practice CIRCLES. your circles will get progressively better. Draw 'em on everything! If you're in school, draw on your notes; if you don't go to school this drawing WILL be more difficult for you to get good at (due to the fact that you aren't confined to a desk all day with nothing to do BUT draw), but don't get discouraged! It's not that hard in the first place!
You should also practice the two othe basic shapes of ALL things: Squares(including rectangles), and triangles. If you don't believe me just look at the world around you...ya'll will see how they fit together. PRACTICE PRACTICE PRACTICE!
If y'all need help, I'll do my best to respond and work with you, posting your comments with the appropriate steps will help me out a lot though.