Post Traumatic Stress Disorder (City Problems?)?

Hello... Good day to you all. I am 12 years old turning thirteen. I live with my grandfather in an island resort he own. I was home schooled there and now I am going to be attending in middle school. my grandpa sent me to the city in the care of of one of his employee's. I only been here for a few days and I am still awkward because I've been living with mostly my grandpa and the employee's there. I had a hard time coping in the city and while on my way to store I was called by a lady wearing provocative clothes, she had a lot of piercings. I don't know her and her breath smell's weird. I think it was alcohol, my grandpa usually kept me away from it which is why I am not sure what it really smell. she ask me for some cash, since I have an extra with me and all I need to buy was a toothbrush I gave her the extra. I think it was 30$, I never handle much money and I rarely keep it in me because I never had to buy anything when I was with my grandpa. after giving it to her she started talking to me about things I don't understand, asking me if I'm new to the city. she ask me to sit with her, I'm hesitant because one of my caretakers back then use to tell me to never talk to strangers unless I had something important to ask or if I'm lost. when I sat beside her she started touching me in weird places before she put her hands inside my shorts and she ask me if I have an experience, I didn't know what she means so I said no and she ask me if I wanted to experience it. I was so confuse and a little scared because she was doing something to me that nobody done before so I ran away. I don't know why but I was starting to get scared at that moment. I'm starting to regret moving in the city now, I wanted to go home. I'm scared to go out, what should I do? Is the city really this scary?
Post Traumatic Stress Disorder (City Problems?)?
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