Upload the free planner SVG that you were sent via email and upload it to Cricut Design Space. You can get a tutorial for how to do that here.
Cut the iron-on material with your Cricut machine. Be sure to cut the shiny side down on the mat and mirror your design before cutting. You can see a tutorial on the basics of heat transfer vinyl here.
Weed away all of the excess then press onto the front of your tote bag. You can use an EasyPress, heat press, or an iron for this.