How do i Afford a new Bike?

I want to start with triathlon and I know this might not be exactly the right topic here, but I’ll post it anyway. I want to buy a bike for my triathlon for around €2200. However, I don’t have the money for it right now. I have about €1000 that I just managed to save, but I can’t wait too long to buy it because the triathlon is coming up soon. I’m 15 and therefore don’t have a job.

What did you do at 15 or at that age, or what would you recommend to earn the remaining €1200 in a short time? Or do you have ideas for things where I can earn steadily and maybe borrow the money from my parents beforehand and pay them back? Also there are almost no Jobs for teens in my town. If thats the wrong subreddit please let me know where this fits better.