You will do fine. Pick a project you like or whose codebase you will be leveraging, and follow their coding standards and practices. Get working code up quickly

You will do fine. Pick a project you like or whose codebase you will be leveraging, and follow their coding standards and practices. Get working code up quickly and don't get distracted. If you end up at a big co., you will look back on this time jealous of the freedom you had and the creativity it supported. Just be sure to deliver working code and useful functionality quickly.