Okay. Personally I request review of changes I am unsure about. Sometimes I upload changes I am not certain about in one changeset/save and add the review requested tag to those. This allows others to filter for those changesets.

Please upload changes in groups that share a common theme and location, for example after you've spent 5-15 minutes mapping. This may speed up your contributions becasue you won't have to save so often, and generally it makes working with your changesets easier. Please read https://wiki.openstreetmap.org/wiki/Changeset#Group_similar_changes_together