using scratch isn't that bad of an idea. you might need to convert your scratch sb3 file though to post it. There is a free htmlifier on Github that you can use. Hope this helps
Give it a shot! If you make the game post the link here and I'll happily try it out and give you feedback. Game jams are all about learning and having fun.
Don't worry! I'm a Scratch coder too! My main advice is just to try your best with what you've got and be passionate in your work! Even if you don't succeed, it's fun to test new waters a bit.
