Hello Keturah Brajcki,
And welcome to the Polish forum.
I remember being 13, I am now 30. When I was 13 and 14 it was the most difficult time in my life, I hope this is not the same for you.
I am Irish and live in Poland, near Krakow. I can not help you finding your ancestry and think t is important for you to find out, you do not know where you are going until you know where you've been. I think you would be perfectly safe coming here. Poland has changed very much.
But there are plenty of thread on here that may help you.
Best of luck
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Know thyself.