Need help actually using the designer.

Hey y’all, got my P1S a couple weeks ago and have been going wild on it ever since. Printing everything under the sun but now it’s time for me to actually learn how to design in Bambu Studio. I went to youtube university to learn about how to actually USE the studio and what the options are but where do I go to get help or learn on how to actually DESIGN something. I have an idea, measurements, and everything I need to build this model I have on paper but I don’t know how to actually build something in the studio.

Any advice is appreciated