Camping question. Overpacking?

Going camping for 3 days. I had to bring clothes & extra clothes cuz it's supposed to rain. Tennis shoes & water shoes. Towels to take showers towels for drying off after swimming bathing suite shampoo hair brush tooth brush & tooth paste. That's all in a duffel bag. Then I'm bringing a draw string backpack to put water cell phone & othe things for hiking & biking. Oh & my pillow & a blanket but that won't if in the duffel bag. Is that too much stuff? I've never been camping so I have no clue what to take or anything please help I'm leaving in less then an hour.