I dislike spiders as well. I mean, a lot. I go sleep in another room if there is a particularly large one.
But, in fiction or documentaries I actually find them interesting, because they have this creep factor. I remember seeing 8 legged freaks mostly with my eyes closed and very creeped out, but it was a fun ride.
Just remember that they arent real. Try to use it as something that gives the game that extra bit of spice, chills down your spine.
Try not to avoid any and all confrontations with what you are afraid of, it will only make your fear grow stronger. Tell yourself it is just pixels, there is nothing real about them. Use it as a way to help make your fear less. After all, you get to hack em, shoot arrows at them, or set em on fire with a spell