Where to start contributing to Processing Foundation open source project?

I am Utsav Jha, first-year undergraduate studying Information Technology at MIT. I was hoping to start contributing 4 months ago but I knew basic school level coding. So I took the time of 4 months and fine-tuned my programming skills so that I could provide much more value. I am a Web Developer proficient Java, Javascript, HTML, CSS, Node.js, Express.js and React. I want to contribute to your community because I feel connected to it, I would chose to contribute somewhere in which I myself believe in. Hoping for a response.
Thanks & Regards,
Utsav Jha.