You can remove your frequent flyer # from segments of flights in order to 'optimize' your status points.
Given the points breakdown you've provided and starting at 470 status points, I would do the following:
- Remove FF# from Sept 11 (18 SP) and Sept 22 (18 SP) flights
- Maintain Sept 11 (80 SP) and Sept 21 (80SP) flights
470 + 160 = 630 points.
After you reach Gold and reset to 0, you can claim the two 18SP flights so at least you have 36 status points to start your new membership year.