She looks like a really nice young horse. I agree with AQHAgirl that the very best thing for a young horse is lots of miles and experience. I'd be spending no less than an hour on her at least 4-5 days a week riding as many trails as you can at w/t/c.
One thing I might suggest, though. Drop all the pressure off the bit unless you're asking her to stop. She's much too green for you to be asking her for any type of contact at all. Starting her on that before she figures out how to move forward can cause resistance, all kinds of headset issues (dropping the head, stargazing, nosing out, etc) and, as you've found out, rearing/bucking in refusal of moving forward.
Whenever she goes to bucking/kicking out, take her nose to one side and push her into very fast, small circles until she relaxes and is very supple. That will discourage her from bucking because she'll begin to understand that bucking = work.
As for the rearing, dropping the pressure off the bit should help, but whenever she balks and you feel her front end getting light, I'd be whipping her butt hard with the whip. When she moves forward willingly (even if it's fast, which it may be...you'll need to be ready for a near bolt), just let her go and only give her directions by using one rein. Do not pick up both reins to slow her down or stop her, that will only confuse and frustrate her and probably make her worse. Until she's moving forward willingly 100% of the time in a controlled environment where you can safely circle her around to slow her down after getting after her with the whip, I wouldn't take her out on the road.
As for how you bridled her, that's not the way I do it, but I see nothing wrong with your method.
Does she paw at you often like she did at 2:13? If that's happened more than just that once, I'd be correcting that quick, fast, and in a hurry.