Family Problems...Help please.?

[Eli Jelli]

I just found out the my current father is not my real father. I am 13 years old and I was looking at some old documents saying how my dad adopted me and is now my legal father. But my REAL father lives all the way in Russia which is where all of my family on my mother's side lives. I was extremely sad, and my mother told me that she still emails my real father sometimes, and he asks about me a lot. She also asked if I wanted to see a picture of him, and I said no. Should I still call the dad I have now "dad"? I don't know...and I can always go to Russia this summer and see my real dad. He hasn't seen me since I was 8 months old, and he and my mom got divorsed in 1995 a year after I was born. I don't know if I want to. Help please...