Aloe vera is a succulent, and nearly every indoor aloe problem traces back to treating it like a leafy houseplant instead of a desert plant.
The single most important factor is drainage. Aloe roots rot quickly in soil that stays wet, so it needs a fast-draining cactus or succulent mix, not standard potting soil, and a pot with a real drainage hole — no exceptions, regardless of how attractive a sealed decorative pot looks. If the only good pot is sealed, use it as a cachepot and keep the plant in a plastic nursery pot with drainage inside it.
Water deeply but infrequently: soak until water runs from the drainage hole, then let the soil dry out completely before watering again. That's often every two to three weeks indoors, and even less in winter when the plant is semi-dormant.
Light matters more than most people expect. Aloe kept in low light stretches — the leaves splay flat and reach toward the nearest window instead of standing upright — and rarely looks good long-term. A bright, sunny windowsill, ideally with a few hours of direct light, keeps the rosette compact.
The gel inside a leaf is genuinely useful for minor kitchen burns, but it's worth knowing the yellow latex just under the skin of the leaf is a skin irritant for some people — rinse a cut leaf before using the gel.