villain is a reg, but I only have 97 hands on him. I typically assume most reg 3b range BBvB to be around 10%. I assume randoms have cb freqs of 65/55/45 (which is the average bet bet bet frequency that I face in my database so far). Does anyone see a problem with making assumptions like this vs a random?

What should I do here? The only thing I feel reasonably confident about, is that I can't fold. If I were to fold I feel like I'd be folding an insane amount too much on these turns, however calling feels close considering how obvious the draw is.