Judged because of not drinking at 13?

We're 13 year old girls btw

a few weeks ago, i was on a weekend away w 7 friends. They took vodka beer and cider from the kitchen
3 friends had sips of vidka, 5 had beer and 6 had cider (one only had a sip- but she is v innocents

i was the only one to have nothing

when we were in the bathroom pourong away the remains, i said lol u rebels and one friend was like why didn't you have any and i said i wouldnt like it anyway but thanks for like not pressuring and stuff
when i walked out, one friend said to the other i need to talk to you, and i heard something along the lines of "thats a bit wimpy isn't it…"
afterward, they were 3 of them lying on the bed, passing around a phone and clearly talking about me on the iphone notes app

later, one friend turned on her phone in front of me and i saw notes open, with my name written multiple times in the text

idrk what to do bc i don't want to make a big deal ; i've just kept this to myself for about 4 weeks

First of all young lady… Yea you for not following the rest and being yourself. You'll find yourself in these types of situations more often as you get older. Please don't ever give in just to be "cool" or one of the crowd. If you don't want to drink just tell people you're allergic to alcohol. Look it up so you can know about it and be believable. As far as them talking about you do your best to ignore it. Either it'll blow over or you'll find out that these are 'mean girls'. You can always confront them if you want. You know how they'll react better than a stranger on the internet.
What ever you decide to do remember that you did the right thing by doing what was right for YOU! Always be true to yourself even when it's not the 'popular' thing to do.

It's wimpy to do it, because you're giving in to pressure. Stick with your strength, it pays off! You'll likely tire of these lightweights and mix with more interesting people.

These people are backstabbers, I would confront them and if I didn't get an apology, find some other friends.

They must be pretty darn bored to have turned their liquor consumption into the fact that you didn't drink. They dumped the "remains" down the sink? THEY'RE TOTAL WIMPS! Maybe your friends aren't very interesting people. Cause if they didn't dance or sing or laugh or tell secrets long into the night… Dump them!