2 Touches In One Night

This is my first ever encounter with the paranormal and I don't know what anything means.

Last night, I was the only one still awake. I live with my family, everyone was asleep. I did my last tasks and went to bed. I lie down on my right side, tucked fully under my blanket.

I wanted to try some sleep meditation, because I haven't been sleeping too well. I have been really stressed out because of a number of things and thought it might help me relax and sleep better.

As I started drifting into the relaxation, I felt a presence in my room. As I said, everyone was asleep. I was fully relaxed and a few minutes later, I felt a soft touch on the left side of my neck. It felt like they put their fingers one by one on my neck. The touch stayed there for a little while and after about 5min, I felt someone grab my left arm pretty aggressively... I was startled and scared myself out of the relaxation, wide awake. The touch and the feeling of someone being present, all went away.

The only things I noticed before this, were a sharp pain in my right shoulder when I was making myself ready to go to bed.

I've also smelled smoke of a cigarette, when my windows are closed and when my mom entered the room, she didn't smell it.

Those are the only other things I've experienced so far.

Most of the people around me (except for 2 friends) don't believe in the paranormal and my friends don't know enough about it to be able to help me...

Does anyone know what this means? I have been doing some research this morning, but I can't really find anything...

Thanks already for wanting to help me, I really appreciate it!