Your supervisor may have mentioned doing an individual development plan (IDP), and if you haven't, now is the time to do so! It's not meant to be homework but rather a way to grow personally and professionally. Start by jotting down some of your goals for the next year or two. Ask people in similar positions (or in a position you'd like to have) about what they've done to succeed. If you're thinking of grad school, see if you can meet with an adviser or professor in the subject area you're interested in. There's no "right" way to fill out your IDP--it's up to you!