hi, nice to read an update from you again
but i have to say right away that no one can take this decision away from you in the end. so far you couldn't imagine wearing the belt without breaks and it is different to say i will stay 100% chaste than to tell your mother "not today" for once. i understand that you are very frustrated in the days before. you know that you will have your break soon and your body thinks about it more. maybe it is also the pressure to have to function.
i have a feeling you will make the right decision, but just in case you want to give up your breaks, don't do it without a contingency plan. what about the idea of trying it for a longer period of time, say 6 months. you stay locked up for 6 months and then talk to your mother again about how you feel about the issue?