The beginner guide for Guilty Gear AC seems very advance to me. It may be because my last fighting game was Street Fighter II Turbo on the Super Nintendo. I don't have a particular style. For the Street Fighter game, I basically beat the hardest setting by spamming Ryu's fireballs and neutral jump roundhouse kick as my anti-air. I think my biggest problem in Guilty Gear is the speed required to execute some of the moves such as guiding Millia's Secret Garden or force Roman Cancels. Also lacking is the ability to react to the moves of my opponent and make adjustments on the fly. To me it all is flowing instantly whereas most players could pick out from the animation what's going on. I'm willing to practice hard and long because I just love watching fighting games. However, without a way or method to go about solving my glaring weaknesses, I'm afraid I'll be stuck in the spamming fireball stage forever.
