It's my first time doing a game jam and my experience in making games is small. Any tips to help me out?

don't go to big on an idea think small then work your way up

make sure that the game doesn't have any bugs that are easy to find or game breaking

also don't do art first that cuts down on the time you'll have to code the actual game

Thanks

I would focus on building a game that will run in a web browser, and you will get many more views and feedback, which will help develop your knowledge and experience for future game jams.