I have to lose weight before my family goes on vacation

I'm under a lot of pressure right now. My family is going on vacation to Europe and we're going to visit multiple countries (Ireland, France, Germany, etc)

We're American and I know for a fact people will judge me as being a stereotypical "fat american" this is my biggest insecurity and fear. I always wanted to travel the world and meet new people but I'm fat and I can't stand the idea that I am a stereotype. I don't want people to look at me and have their bias confirmed. I don't want people to look at me and assume all these negative things.

The last thing I want is for people to see me and think "oh, another fat american, typical" I'd rather rip out all my hair than have that happen. The thought of it gives me so much goddamn anxiety. I can't go to Europe looking like this. I know the judgement and stares I'm going to get. I'm holding back tears typing this right now. I just don't want to be judged. How am I going to lose all this weight before next summer....