My Polish friend is having a really tough time right now, and I want to give him some encouragement. What’s the Polish equivalent phrase to "don’t give up", and how is it pronounced?

The thing is, I want to speak in Polish to him, and I also want to use whatever phrase they’d use in Poland -- exactly like a Polish person.

Please help!! Thanks so much.
rakdos11 -- very funny. I'm not stupid, you know. Also, I presume you mean "Matka".

Crystal_Cupcake -- thank you very much!