pip100 wrote:Oh dear! Had got to the end of lesson 3 and began revising lesson 1, okay, then lesson 2 and half way through my mind went completely blank and could get a single word out. And I thought I was doing so well

You know the bit at the beginning where we say that you don't need to be doing revision with this course?...

When you can get the Welsh out before Catrin (or Cat) most of the time, you are ready to move on to the next lesson - once you have moved on to the next lesson, you do not need to be re-visiting the earlier material - we revisit it all for you...

So - don't move on before you're ready (if you have to use the pause button for every single response, you're not ready) - but once you are ready and do move on, don't go back - unless you have to skip learning for a while, and need a bit of a refresher.
And in any case, do NOT worry about occasional blank patches - that's inevitable, everyone gets it, just relax and switch off and come back later...
