Spoiler- Just finished the game and watched the ending.

I had no idea that my choices would give me a different story, got a really depressing ending first time and surprised at how disappointed I am with myself, despite it just being a game! Not to mention all the hours I put in!

Wrong choices I made-

Took money from the emperor, accompanied Ciri to see the sorcerers and didn't mess up Avaloch's lab.

Taking money was an obvious mistake and I regretted it instantly when I did it, but the other two I thought were in Ciri's best interests.

Ah well, has this happened to anyone else on their first time through?