Watch the Approach 1: Breakdown online guitar lesson by Vicki Genfan from Rhythm Makeover: Vicki Genfan
One of the challenges about getting those harmonics on the AMaj and Amin chords is keeping some fingers bent (the ones fretting the notes) while keeping the harmonic finger straight. You can do it! It’s worth taking the time. As for the finger picking pattern, it may feel odd at first to have your thumb on double duty, playing two strings in a row, but you’ll get used to it. Last, but not least - take note of the triplet feel on the A chords.