I think that @RedPowerLady and @RealEyesRealizeRealLies have made very good suggestions. I would add to @RealEyesRealizeRealLies’ idea that the entity sucking the like out of you is yourself. From what I’ve seen of your questions and apparent concerns, I think this might be on target. You appear to be concerned with depression and relationship issues both with friends and lovers and with your family.
I think this dream might be indicating a franticness in your way of dealing with these issues, and suggesting that the way you are approaching it isn’t working. The people trying to pull the spider or tick off, could be flutherers that offer you advice. The advice isn’t working. I suspect it’s because you are fighting the spider/depression/tick, instead of accepting it as a part of yourself. Maybe the dream is telling you that you can’t kill that spider without killing yourself.
You got to live with it. If you fight it, it’ll just lay eggs and spread. The way out of your problems is to learn about what they give you, and accept those gifts, and move on to do what you want.
Ah shit. I don’t mean to tell you what’s going on like I know what’s going on. It’s just a perspective on the dream and what I’ve seen and intuited about you. I don’t really know you at all. I could be totally wrong. Don’t take it too seriously. I think I did.