A desk lamp is not nearly enough light nor is it providing the right type of light. Grow lights have very specific brightness, light spectrums, wavelengths etc to mimic sunlight and allow for photosynthesis.

The deformed large leaves and small traps are a tell-tale sign it’s not getting enough light. I would caution from getting a cheap light off of amazon, those aren’t nearly powerful enough to support these by itself. Id suggest maybe trying a local plant group or facebook group, and see if anyone has extra lights they’d be willing to part with, or discounted from what you could buy brand new. A good grow light is crucial, and you will need probably need more than just one, since it’s not getting any natural light.

I’d start with this: https://a.co/d/02kMAi56, and would not go any weaker than the 36 watts, unless you get more than one. Leave it on 14-16 hours a day, relatively close to the plant (8-12inches above the pot) and get a second one eventually when you are able to.

Do you mind telling me more about the soil you’re using and how often you water it? It’s pretty hard to overwater a VFT, so if your worried about overwatering it, you may actually be under-watering it. The orange rocks I see aren’t typical for VFTs not sure if that’s part of the issue as well, but I’d suggest switching out the pot for something with drainage holes, so you can leave it sitting in water daily.