Help!!! My leaves have brown spots like this!!!

I think it's because you put it in direct sunlight. It's obvious!!!
So keep in indirect sunlight!

Several reasons, such as overwatering, pests, low humidity, high mineral levels, and too much sunlight, can cause this plant to develop brown spots. However, the most common cause of brown spots is a lack of moisture in the soil.

It's understandable! There are so many factors at play here. The most important thing to remember is that you gave it your best, and that's what matters! I think the humidity and lighting might have something to do with it.