She started rather slow but hoping she will improve over the weeks to come.
Extra 25w spot light 4 inches away to make up for the extra space between plant and main light
Yes that is a super common result of overwatering. The leaf will not go back flat after this, but don't worry and keep an eye on the water amount! Good luck!
looks like nitrogen toxicity to me.. Very light amounts.. But the leaf tips curling down on higher foliage leaves is almost a given that it's nitrogen toxicity.