Remember that InDesign is for layouts and Illustrator is for (you guessed it) illustrations. Focus on InDesign first.
https://helpx.adobe.com/indesign/tutorials.html
https://www.lynda.com – you may have free access through your public library’s website
A good exercise is to take a printed piece and try to recreate it in InDesign. One way is to place a PDF in a Layer, lock it, then make a new Layer on top and use it as a guide to create a new design.
It takes some time to learn both of these, so don’t expect to understand it all in a week.