If you don't believe the flood story, fine. I'm not going to try to convince you that it's true. I doubt that miracles leave behind scientific evidence. That's why Christianity is a faith.
But, you didn't answer my question about the resurrection. You said you believe in God. I assume you mean the God of the Bible, though admittedly that's an assumption on my part. But if you do believe in the God of the Bible, do you believe in Christ's Divinity, His virgin birth, His miracles, and His resurrection? If so, why could God pull all that off, but not pull off the flood and the ark?
I believe there have been lots of floods, they happen every year somewhere. I don't believe in a flood that covered the earth and killed all but one male and one female of every species, there is zero proof of that. Plus, it would have killed off all the plant life and because of that, the remaining animal life would have died and we wouldn't have those species today.
Its a fable, one used to teach, not science, and it didn't happen. You can't treat it as if it was a historical event on one hand, and then as a supernatural event on the other. There would be proof, there would have been proof centuries ago, why hasn't anyone found the ark in 2000 plus years?
Think, use some logic and some reason to work this out. You are lazily just using the "miracle" route to fill in the huge gaps in this story.