hi, i'm Neil and this is my first ever game jam! i want to actually finish a game but the thing is that i don't know how to do like half of the things, like making music and UI so i'm really nervous, any tips?

Hi Neil this is my second game jam so I can relate. My first game jam attempt was a big failure but I learnt a lot. Just have fun with it! Look up tutorials, use this community page for help. Start small and even if you don't complete your game at least you have started a project and used your own initiative to solve problems. All the best man!