Tounge Twisters and the Invisible Gohonzon

I know don't anyone who first started Nichiren experienced this, but I'm have problems doing the Recitation of the Sutra. I tried to mimic the way it's said at meeting, but it's not exactly there. I would start strong and then slow down. Also, I was try really hard to pronounce every word correctly, but I would be my tounge tied. :P Has that ever happened to anyone or is it just me? Also, when chanting & reciting, I would use an empty wall for my Gohonzon.