3.[tune your settings](https://ultimaker.com/en/resources/20407-first-use-cura-2)(layer thickness, infill, wall thickness, supports, etc.)
4. check your model in layer view and make sure your output is in line with your expectations (supports are where you want them to be, wall thickness and infill are appropriate, brim/raft is positioned correctly, etc.)
5. check your print time and make sure it's reasonable and in line with your 3D printing experience. Basic rule of thumb - your first print should not be longer than 30 minutes, and every following one can double the time.