How to pronounce cz, ć, ci.
Kocię chęć na ćwikłę czuje. Kocia mama miauczy czule: miłe kocię, porzuć chęci. Nie je ćwikły ród kocięci. Jeśli ćwikłę tkną kocięta, jęczą potem niebożęta.
(I swear, I do not know whether I remembered or transformed one of exercises I did in my childhood, or I just made it up myself). Maybe later I would post a translation, or someone else could translate it nicely.
Nice. I see that you are the same level as me in Polish, since I am 100% Polish, I've had a head start. They set up the course well.
The 'cz' sound in Polish is pronounced like a hard 'ch'; whereas, the 'ć' and 'ci' sounds are both pronounced like the Japanese 'chi'.