Zotero is produced by the Center for History and New Media at George Mason University. George Mason University's Libraries have produced several tutorials. In this tutorial, they demonstrate step-by-step how to download and set up Zotero's features.
Source: HPU Zotero Research Guide https://hpu.libguides.com/zotero
Your professor can help you understand assignment guidelines and expectations. They may also make suggestions about how to approach your assignment.
Check your course syllabus to find the best way to contact your professor.
Librarians help primarily with the research involved in crafting your assignment. This includes choosing and narrowing a topic, finding resources, and using resources ethically.
Tutors at the Center for Academic Success (CAS) help primarily with completing your assignment. This includes help with writing or otherwise crafting your work, and providing suggestions on how to improve your work.