Lost my SIM card now I'm terrified?

So i had an iPhone 5s then I dropped it in the water and the screen went completely black, so I took out the SIM card and got a new phone (iPhone 6) and I didn't put the sim card. So yesterday I was outside and I tried to put the SIM card in and it's so tiny it dropped and I kept looking for it for hours and just couldn't find it. Now I'm really scared what if someone finds it and sees my pics. My friend told me she put her SIM card in her new pgone before and her pics came up and she said SIM card stores everything (she had flip phone though). I had a lot of embarrassing and pics I don't want nobody to see in that phone. I'm scared what if someone found my SIM card Help

Your are fine as far as having to worry about embarrasing pictures. Any pictures would be stored on your phone itself on a 5s. Your friend may be confusing microSD cards with SIM cards, they are about the same size. SIM cards can store contact info, but not much else except the data that identifies the phone as yours. On the other hand some people use microSD cards to store pictures and data, but the iPhone 5s does not support microSDs, so you are in luck.

You need to contact the phone company and have them cancel the old sim card and send you a new one or someone could use the old SIM card it on their phone to run up the bill.

You also need to reconsider EVER taking embarrassing pictures and leaving them on your phone. It is just too easy to get pictures from a phone. Haven't you heard about celebrity phones being hacked? Once an an embarrassing picture of you is on the internet, it will never go away.

SIM cards do not store pictures. Never have, so your friend is likely tricking/lying to you or accidentally thinking the microSD card is a SIM card.

Your friend is wrong. Photos are not stored on the SIM. In fact, iPhone doesn't store anything on the SIM. So you're safe.