Kite festivals generally draw quad flyers, so there is a good chance to run into some there and get some person to person instruction and someone who can check that all things are properly adjusted to make learning as easy as possible.
That said, watch all the beginner videos available to you on this forum again and again until you are sick of watching, and then watch them all again several more times. Regard them as gospel. They are tried and proven and if followed closely will put you in control in a relatively short time. Remember that some folks just click with it but others don't, so you may not progress as quickly as you had expected.
Assuming you have consumed the videos enough times to make you vomit, now comes the part where you go out to fly. Be very selective regarding the wind in which you will be learning. Gusty wind that changes direction a lot or dies and reappears, or is less than 5mph or more than 12mph will only serve to frustrate you. You can't learn anything when the wind won't let you, so don't waste time in garbage wind. Go pursue another of your interests and wait for the good wind. In good wind you should have some basic control over the kite in 5-10 hours of flying. In lousy wind you still won't have it after 40 hours. Patience is everything. Of course, at a festival you can draw on the experience of others in wind that isn't exactly great and still learn.
Before you even attach lines to kite or handles make sure your lines are of equal length. Whichever line is shorter than the others will make the kite want to go in the direction of the part of the kite to which it is attached. You will wonder why the kite wants to turn without you telling it to. If all your lines are different lengths, you don't stand a chance of control. They should all be within 1/4" of each other in length.
Remember to have fun, smile and don't forget to breathe.