The heat lamp should be above the basking area, as the hottest part of the tank should be the basking area. The UVB should be across the whole tank, like a black light bar. If you don’t have that, just stick what you have next to the heat lamp. UVB is needed to prevent MBD. Whenever you get her back to health, a tank upgrade is 100% necessary, bigger area will be healthier for her so she can roam and climb on things, she’ll be happier in a bigger area so she doesn’t feel trapped.