Solo Female 18 Guatemala

Hey guys!

I'm graduating high school this spring and I want to do a senior trip to Latin America. I'm a budget traveler and I was looking at sleeping in dorms and travelling by bus. I'm looking at Guatemala- staying in Antigua and then taking the bus to Lake Atitlan. Using Antigua as a home base and then taking bus trips. How was your experience in Guatemala? Did you feel safe as a solo female? Do you think it a good destination for a young, first-time solo traveler? I'm planning on taking a big backpacking backpack and a small day backpack. How is it like in July? How much did you spend per day on food, transport, activities?

I'm low-key scared because I have never done anything like this alone.

Do you have any other destination you would recommend? Preferably Spanish speaking?