Simple and fun game, music is fire. I think you've done very well for your first jam, you definitely had a decent idea of what you're able to create with the time you're given, I couldn't find any bugs and I did manage to play for quite a while. The sound of eating those cookies kinda threw me off though. I really did not like to hear that entire sound every time I picked up a cookie. The first 1-2seconds of that sound are fine, but everything after that is too much :D
Congrats on your first jam! Well done :)