If you can't get ticket from/to intermediate stations in pooled quota, try booking end-to-end in general quota which has a higher chance of confirmation (at a higher ticket cost though).
I booked ticket at 11.15pm on 7/4/2019 for travel in 12164 on 8/4/2019 from MS to DR (with boarding point at GTL). Booking was in GNWL10 and 11. It got confirmed after chart preparation at 2.45 am.
I ended up paying ₹1500 (MS-DR) instead of ₹1150 (GTL-DR) but had a confirmed ticket in a very short notice.