Hello! This will be my first game jam as well. I would keep in mind that the Jam is still almost a month away and you are allowed to work in teams; you don't have to create the whole game yourself! There seem to be a lot of people saying it is their first jam and I hear a big part about game jams is networking / connecting with other passionate people about development or gaming. Meet some people before hand and see if forming a team is possible. Worst case, schedules or time commitments don't align and you've only met cool people you may be able to collab with in the future!
GameDevTV discord has both a Game Jam channel and a Collaborate channel, both of which have people looking to build teams!