Before you go down the rabbit hole of manually uploading publications, make sure that everything is correct with your name-based search settings i.e. that you've put in all variants and that you don't have anything in the "journals" field.
Before manually adding publications, check to see if you have any "Pending" publications. These are publications that the system thinks you wrote but is not completely sure.
Step 1. Navigate to "Publications" by clicking the heading on the home page.
Step 2. Click the "Pending" tab at the top of the page.
Step 3. If you (or the Faculty Member that you are a delegate for) wrote a paper, then click "Claim". If not, then click "Reject".
Step 4. Repeat steps 2 and 3 until all "Pending" publications are either claimed or rejected.