Keep practicing the fingerings, that is key. However, use the lyrical exercises a lot. Sing it out loud or in your head. It doesn't matter so much if you sign it well, as long as you can start to develop good phrasing habits and making it sound pretty. If you can sing it, you can play it. Also, if you want to keep lung strength up a bit, keep blowing. don't actually play, but practice your breathing. Try acting like you are playing (using your air, proper fingerings, even keep your lips set as if you were playing) and do that. Obviously, if you get a headache, stop. Best of luck to you.