New chords are tough; we've all been through it. Take it in bite sized chunks if you can (following the advice listed above)... even just 5 or 10 minutes on just the chords, and if you feel like you're starting to get it, stop with that success and leave something for next time. If you try to "push through" you'll likely get frustrated and feel like you're suddenly doing worse than you were a few minutes ago. Learning new chords will always be challenging, but you'll get better at it the more you do it.