Can’t get off

So I’m new to masturbating, and before I started I read every tip and blog post to ever exist. (This May be tmi) but I put on some porn and then start rubbing my clit but after a few seconds it starts to hurt and I don’t feel like I’m wet enough to penetrate. Does anyone have any tips? I’ve tried riding a pillow and it feels good for a little until it hurts. Also I can’t get my hands on any toys.