Can I call myself polish? ?

My family moved from Warsaw to NYC in 1900. I can't speak polish. and I've never been there..I still have the last name..So I'm just curious. I'm i able to be called Polish?
I was Born near LA.
I'm 16.

I want to go to study to Warsaw or Gdansk, how can I find well-paid job there? I want to earn more than 0 a month.I will be able to work only part-time, do u think it is possible? I speak 3 languages:English, Spanish and Russian, I have a BA degree. Is it possible to work as a teacher at some private school? Please, advise smth to me... For example, good websites in English.Thanks.
Do I have any chances?

I have a flight for tomorrow (April 17) flying to Warsaw from Toronto [Pearson] at 6:15 pm. I was just wondering if anyone knows the procedure for cancellations from LOT.

The travel agents seem to have no idea what they are talking about so I was wondering if anyone here knows.

Do they tend to offer a full refund or a credit minus penalties ?

could somebody please advice me with finding a job in warsaw,i have degree in commrece and been working in uk for 5 years in sales and marketing,can't write polish ,speak only introductive polish.or any kind of other advice.
regards

Polish language certification?

Hi guys! there are many institutions offering Polish language certification. However I am itching to know exactly what certifying body is "the" official one? any institution like Alliance Francais or Instituto Cervantes? is there any branch within Asia? or should I pack my bags and land in Warsaw? :)

Thanks!