Congrats. I would just say to have some fun with it for a while and just get used to it. Don't pressure yourself to shoot perfect groups. 150 arrows is a lot of shooting for a day. Bad habits can form from shooting too much and becoming exhausted.
See what feels comfortable for you. You don't have to shoot with that much cant. The proper cant will come with aligning the arrow below your eye pupil (important), your anchor will also come into play with this.