I just kinda want to make a silly animation on scratch but I don't got ideas should I make a project saying I dont got ideas? or can you guys help me out?

If you're still looking for ideas for a silly animation, try recreating an iconic meme from the past 5-20 years and animate it in your style! For example, I gave an idea to someone that they should recreate Steamed Hams, why not try that?