This is something that I'd try if it wasn't cost prohibited. But no, I'm stuck on benzos forever. At least they are cheap and they work OK I suppose.
It simply isn't possible, at some point your tolerance will become so high you will be forced to find something else. The withdrawals from benzodiazapenes are some of the worst of any drug and will require medical intervention in order to keep your seizure threshold properly regulated.
The Ashton Method has worked miracles for many including myself.
https://www.benzo.org.uk/manual/bzcha02.htm
It is hard to find a doctor who will support you with that treatment, but I went through it and am successfully benzo free now.
The J+J spray is a scam, but it does establish the treatments being done off-label with regular ketamine as safe and should give hem some level of additional protection.