i have to start making games.
I did my first LD when I had barely started in game dev. I would say go for it and try your best to hammer out some game mechanics within the 2 days. Even if you don't submit, it should still be fun.
It doesn't seem cool
You don't have to meet up with anybody. There is nothing cool or uncool about it. You make a game in 3 days as part of a team or 2-3 days solo. It is meant to push yourself as a developer. I've only done two, and both times I have learned a ton about game development in those 2 days.
I'm definitely doing it. My goal is to hit higher on the graphics side. I might do the jam this go around so I can use some outside assets.