AITA for refusing to share my food with my 7 year old cousin?

This is stupid but its really been bugging me lol. Basically i was eating dinner and my 7 year old cousin came over and asked if she could try some of my food. It's a bit of a tradition in my family that everyone shares their food and that you should always try a little bit of everyone's and stuff. i really really hate doing this because i don't like food touching or tasting like other food, its dumb but i've always been like this and its pretty hard for me to eat at family gatherings. <br><br>I had just come home from a long day at work, and i was exhausted and very hungry. Whatsmore the food i was eating was something i haven't had in a very very long time, and is one of my favorites, but i didn't want to share it.<br><br>So i told my cousin no, and instantly i got like 5 sets of hands grabbing at my arms and my food and yelling at me not to be so selfish.<br><br>The thing is my cousin was also eating, so like... she had food, it was just that she wanted to try mine because there was a pastry with a really pretty design on it and she liked the look of it. I feel like as i'm an adult i have the right to say no especially when i was tired and hungry but everyone went on and on about how selfish i was.<br><br>So AITA for not wanting to share my food?