Congratulations on making it to the end of the course!!
You've achieved a great deal, but this is just the beginning! My advice from here is to start making apps of your own. If you don't have any ideas ask around, or read my ebook How To Earn $10,000 While Learning To Code to see how you might start making some money from your app dev skills.
Remember, the answers to pretty much every question you have are out there (usually on Stackoverflow!) so just start building and learn as you go!
Some suggestions for sites to bid for Android projects (bid low initially and offer outstanding client support - it's not about earning money, but building up your portfolio and practicing working with clients).
Best of luck, and once you've made an app let me know so I can retweet it!!
Happy coding,
Rob