I would also highly recommend learning version control - GitHub has a good set of Git tutorials at https://try.github.io/ https://try.github.io/, and http://ohs

I would also highly recommend learning version control - GitHub has a good set of Git tutorials at https://try.github.io/ https://try.github.io/, and http://ohshitgit.com/ http://ohshitgit.com/ is a handy reference for common mistakes/pitfalls in it. Using version control regularly gives you: * Backups in case of mistakes/system failure (so long as you remember to sync/push your work to an external server) * Room to experiment with various approaches to a problem (since you can always reset to a known good state) * Experience in explaining and structuring your solutions to problems