[ithinkso]

> and I always feel bad for not knowing how to start pronouncing their names

No worries, give it your best approximation and if it's way off or if someone cares a bit too much they will correct you, use the corrected version since then and you're golden.

We know it may be hard, no problem whatsoever and no one cares, don't worry about it one bit and definitely don't feel bad about it. I think poles actually prefer if you say their name in 'english way' rather than super-correctly in polish because it sounds more natural instead of being suddenly jerked back into polish for a millisecond and then back into english. Just remember the 'w'->'v' and you will get a lot of street cred for free