regarding word count, you are doing a 3000 word essay which DOES NOT include the literature search log in your appendix but DOES include the Annotated Bibliography template (though we will make an allowance for the paper references in the first column).
EBSCOHost, a portal which will allow you to search the connected databases. Click on Choose Databases and then on, for example, CINAHL and Medline (with full text) then on on the yellow OK button at the top of the page. Click on Advanced Search and this will then take you to the search area. You will see a number of boxes into which you can type your search terms.