I'm also 18+ and am willing to work with you. Just be aware, I have absolutely zero experience with coding a game. The closest experience I have with that is maybe stuff I did as a kid on code.org or some things I had to do for class on BlitzMax. I am, however, willing to learn how to code on Unity or any other engine you plan on using. I've studied coding (on-and-off) for 5 years and discovered that as long as you know the rules, most languages are the same. The coding languages I've had experience with are JavaScript, Java, Python, C++, C, and a few others. Since the Jam doesn't start until a month and a half from now, I'm willing to dedicate myself to learning that within this time.
I also have mediocre art skills. I've never done 3D modeling or pixel art (for games) either. These are things I was planning on learning if I went solo, so if you believe that my skills there are adequate (at least in 2D art for now), I'm willing to contribute there as well. I have no experience with music or sound effects (my plan was always to use royalty-free assets), so I'll be ineffective there.
Finally, I am also willing to contribute to co-writing for the story concept (if you want the game to have some sort of story once the theme is announced), or proofreading. I would like to believe that my writing is good, or at the very least my ability to realize any spelling or grammatical errors.
Anyways, let me know if you do want to work together. I'm aware that right now, I'm offering more of a concept of what I can do rather than proof on my skills so I understand if you'd rather work with someone more competent; it's not a big deal for me since I'm doing this mainly for the experience! If you do, let me know where it would be best to contact each other. In case this is an issue, I'm in the PST timezone.
I'm on Discord and have a few social media accounts on places such as twitter. I'm also willing to email. Though, it's probably best to message me on Discord since I'm most likely to make timely responses there.