So I did a WILD this morning and holy shit it got scary! It was going good at first, I had intentions to conjure up this guy I liked but failed-instead, this guy who sits right beside me in class appeared Then the dream changed and I was on my bed and I look to the right side and feel a stinging pain on my forearm and turns out there was some shadowed figure holding on to it and pricking me with a sewing needle but thankfully, I woke myself up before anything worse could have happened.

how the heck can it go from an okay dream to that?
and how do I get the right person to appear in my dream?
also, do you have any other tips to a more successful lucid dream once you're in it?