I wish I could watch and offer assistance.
All I can say is.
Next time pay attention to which way you foot is pointing when you enter the roll.
You should be pointing into the direction you are being thrown. If not you will rotate inccorectly and land on you back or side.. etc.. Also breath out when you hit the mats.
I learned this the hard way when I took kotegeshi with my foot pointed wrong.
Oh yeah I held my breath that time too.
Most important though is never give up.