Elen has a point, take her advice.
All you need to draw is a little notebook and a pencil you can carry with you all the time and doodle something when you are waiting for the train, bus, at lunch- or coffee break, at the dentist waiting room or when you are waiting for the girl when she is late again. If she finally shows up you tell her : “hang on chérie, I just have a bright idea.” She’ll be in time next time 🙂