The first step is to become proficient in flying a trainer kite.
I bought my first trainer kite from Craigslist for $50 before I even knew what a trainer kite was. Lucky fro me, I happened to buy one of the best trainer kites out there - Slingshot B3.
Trainer kites come in three types: 2/3/4 lines. Typically the smaller kites come with just 2 lines and the more powerful kites (over 3m) come with 3 or 4 lines. In terms of flying, a 2-line kite flies just as well as a 3 or 4-line. The benefit of a 2-line kite is that the lines never really get tangled, where the benefit of a 3 or 4-line kite is the ability to relaunch the kite after it crashes. To relaunch a 2-line kite you'll need to walk back to the kite and put it in the correct position ( very important ! ).
My Slingshot B3 was a breeze to learn to fly and control. I am happy I didn't waste $100 for a land/ground course. It took me literally less than an hour "to master" flying this kite.