(Android) How would I go about storing data with this kind of app. SQLite or Shared Preferences?

So I have this idea for an app (mainly for personal use) to write down homework or upcoming project due dates and save them. Maybe add alarms to help me not procrastinate. So here's my question, how would I store assignments? Never actually made an app that stores user input so I don't know where to start. From what I know I can either start up an SQL db or use Shared Preferences which I'm not familiar with both. So my question is what's the advantages and disadvantages of either?

I'm sorry if I'm not being very clear, I'll try to clarify if needed