Your schedule includes both texts and emails on 10 different days, potentially up to 20 touches in less than a month. If customers are asking you to stop, I'd remove them from both follow-up channels immediately.
Before changing the whole sequence, I'd review 10 recent quotes and classify each as booked, declined, still deciding, or no response. Then check which follow-up actually led to a reply or booking.
That could help identify which quotes need personal attention rather than another automated reminder.
I run FollowBridge, a small service that reviews up to 10 open estimates, prioritizes next actions, and prepares follow-up drafts for the business to approve. Nothing is sent automatically. Happy to explain the approach if useful.