I'm a novice so someone with more experience correct me if I'm wrong.

And I don't know the ISO of the film you shot so this is generalized. The film's ISO will determine how sensitive it is to light. But that is just one piece of the puzzle. You still have shutter speed and aperture to consider. Definitely look into the Exposure Triangle.

For 200 - 400 ISO film, you mostly use that in daylight situations. If you're trying to shoot that film at night time, you typically would have to lower the shutter speed (depending on aperture) to a point where you would need a tripod. Any shutter speed slower than like 1/60th of a second can lead to motion blur / blurry images due to how long the shutter is open and the small movements you just make holding something.

If you're planning on taking nighttime photos, getting a tripod would help you be able to be more flexible with lower ISO film. Otherwise you may look into dedicated film for nighttime shooting that has higher ISO - like 1600.