***NOTE: Updated APA 7th edition went into effect in late 2019.
Even if you use the citation tool within a website, e journal, or Google Scholar, you MUST double check your work through a credible source such as Excelsior OWL. You can't rely on the citation generator of Google Scholar, etc to have all of the details correct and in order.
Zotero is a free, open-source citation tool that you can use after you graduate! They tend to provide good user-support through the Zotero community. Lots of how-to videos via YouTube. Their quick citation generator is a new tool, in addition to the full (free) software available to download.