The beginning of a new Level is always quite a jump (from my experience). But it all starts flowing better, at some point!
Things I tried and seemed to help:
- using pause button as much as I needed (actually since first challenge in Level 1 to tell the truth!).
- occasionally repeating a challenge id I felt really lost.
- Taking a break to let it all sink in (just listening to songs in Welsh, watching a bit of TV, taking it easy).
- Repeating the last 3-4 challenges from Level 1 once.
- Writing down the English sentences (especially the longer ones), so that I could remember what I was supposed to say in Welsh
p.s. look, it seems that someone else is going through this phase at the same time as you (and maybe you can find a few more tips there):
https://forum.saysomethingin.com/t/level-2-is-a-killer/23203