Do you feel used by everyone?

This isn’t just regarding a partner, but all of my relationships with people in my life. I don’t know how to not feel this way. I feel like anytime someone wants to talk to me it’s for their own benefit. Anytime I ask for someone’s opinion or guidance it’s for their own benefit in what they tell me to do. How can I know the difference from someone who is using me or taking advantage of me or not? How do you trust anyone?