Check out @xchrisd’s 3D Printer Walk Through. Although if you’ve done the cube and Benchy, you probably already have. I will admit that each project’s Thingiverse instructions are hit or miss on suggestions.
@Dojima posted his experiments with Benchy and his journey getting there. Give those a read, and see if anything resonates.
If you’ve got a specific issue you’re concerned about, there are lots of posts helping people. @iAlreadyLost’s recent post about his XWing quality comes to mind, and has a lot of tips.
If searching and those threads don’t help, please post your results and specific questions. The walk through has a suggested post format to make sure you give us all the info we need to help.