I always laughed at the 'millions' and 'billions' of years, as this was the custom at my house. I was always interested in science, especially astronomy and archeology, I just thought the Bible (the way I had been taught it) had to be right since it was the word of God, and He should know...
I also thought to myself that these ancestors were just types of apes that are now extinct, and - - well, I was right, but they are still our ancestors. But back then, there were much fewer discoveries, and biology (DNA research) hadn't really entered into it yet (well - that may be wrong; more likely it was just that this research hadn't reached me yet, for obvious reasons). I didn't know much about evolutionary theory other than a misunderstood version of it, and didn't know about the various radiometric dating methods outside of Carbon 14. I also of course thought that some of it was the forgeries of some overzealous scientists out to get fame and fortune, and/or an opportunity to deny God's existence.
I had a very skewed view of science from my upbringing. On the one hand, science was great, but on the other hand, not to be trusted once they contradicted our view of the Bible. "Mustn't forget also that Satan is pulling his strings"....
-Would I read a medical dictionary, form my own opinions of medicine, and then go to a hospital to tell the doctors and surgeons that they're doing it all wrong, from the ground up? I've come to understand that - although of course fallible - real scientists are actually specialized professionals with a sense of pride in their work like anyone else, and to say that anthropologists, archaeologists, biologists etc. etc. don't know what they're doing is an insult, just like going to any other professional and saying the same. Especially if the person pointing it out is not even educated in the field. When the scientists say that 'this and this ape was our ancestor', they're not saying it simply because there's a superficial likeness, but they actually examine the bones carefully, often several specimens of the same ape, and see homologous features that - when compared to the other specimens - show a progression over time, since these bones are also found in different strata. Add to that comparative DNA research on living apes, and we're getting somewhere.