Hi Sofia, welcome.
What time of day and how do you water it? Does the whole plant get wet, like with a hose trigger, or do you just water low down at the soil level?
The curved surfaces of water droplets can focus sunlight and cause spots of sunburn.. It's the location of the damage on the leaves, where water drops would collect that makes me think burns from watering even though it's on the North side of the house.
Sometimes I can tell right away what's wrong, this is not one of those. I'm not confident that's the problem, but I don't see any evidence of bugs, and in Austin in a terra-cotta pot this time of year I don't think your overwatering, so this is just an educated guess.