am I right to think that my solo flight would follow the blue arrows
The dark blue line shows the "traffic pattern" or circuit.
In your
first solo flight, you would most likely fly that traffic pattern.
But before that, you would fly this so many (maybe 100-150) times with your instructor, that you will know it by heart.
Your first instructional flight (non-solo) will probably be in the Local Flying Area, where the instructor will show your the boundaries, landmarks, restricted zones etc.