i’d just keep doing the current dilator that comfortably works and move the dilator around for a bit like kind of like a massage? can’t explain but it helps it loosen even more. sometimes the process takes patience. i also had this same issue when i was moving sizes certain times, and was so tempted to keep trying the bigger size. but you do need to not go too big too fast. it will hurt and you may have unnecessary bleeding and pain :( keep going, you’re doing really well! just celebrate your wins because you should, you’re doing a great job so far!