No worries man, some of the most common sources to be utitlized are the follow websites
http://e-liquid-recipes.com
www.vapingunderground.com
https://www.reddit.com/r/DIY_eJuice/
even just googling something like..
"jam doughnut vape recipe" or "anything vape recipe", if it existed, it should be somewhere in the first or second page of results.
If you find something, always remember to adapt it the amount of juice you want to make and the nicotine level you prefer it to be.
Never take credit for something that you didn't create and don't take someone elses juice recipes for your own profit.