掲示板 Forums - Lost

On your main dashboard, do you see your schedules, the ones you're currently learning? (Based on what you're saying, there might be just one, the one for hiragana.) Below it says "Manage your schedules". If you tap or click that, then "All Schedules" (the one on the right, with the magnifying lens icon), you'll find a list of schedules to add, grouped by difficulty level. If you're just starting out, learning the hiragana and katakana syllabaries ("alphabets", so to say) is the first thing. Once you've gone through them, you can add a basic vocabulary schedule to help you learn words and practice the kana. Also, once you finish schedules Renshuu often recommends what you could learn next.

Don't worry, the interface gets clearer once you've used it a little, and it's well worth it. Good luck on your Japanese journey, and don't hesitate to look up your questions in the forums, or just ask new ones if you don't find answers in the threads.