Apparently I might’ve been followed home and I didn’t realize it what do I do?

Background information I am a 17 year old girl. My driveway is secluded roughly 1/4-1/3 mile long with twists, and turns with trees surrounding and on private property. Anyways, I left 2 times today once to go to Starbucks and the other time the the gas station to get ice. When I was leaving to get ice a family friend J was there I said hi and then left. I came back and then later on when back outside cause I forgot something in my car and I say J and my dad talking. J asked me if I noticed anyone following me home or if I ordered any doordash and I no. said that he saw a tiny car and a Big guy driving down the driveway after I came home and then left when he saw J. So now I’m paranoid and am worried that I actually was being followed. The fact that their first thought was me being followed is unsettling. What do I do? I live on a decent amount of land with a bunch of trees so that makes the psychological fear worst too.
Apparently I might’ve been followed home and I didn’t realize it what do I do?
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