Cant make this collar

I’m really struggling to make this collar I’ve tried and tried started modelling on the stand made a pattern from that tried that one on the stand to find it wasn’t big enough used that and increased measurement for the stand and it still didn’t fit made it fit the stand but then was too big for the bodice this collar has been nothing but agro to me atm and with toil review not far off I’m starting feel a little anxious I’ve got 3 other toils with collars on but there are still faults with them so I’m going to toil 1 more time so have a few to show on toil review and seek advice for