Your aunt? I would be cautious. Not because you don’t trust her, but because you don’t know her enough to trust her. Get to know her and see for yourself whether or not you can trust her. What motivates her to find you? Why now? What changed that resulted in her reaching out? What relationship does she have with your father? Why does your mom caution you? (Trust your mom, she knows way more than you). Ask questions, but more importantly, listen to the answers. Keep a journal and find patterns in what you see and hear so you do not get hurt. Remember, your dad left you, not your aunt.