A threshold dose of Diphenhydramine (Benadryl) is approximately 25mg. I would be very careful combining something like Diphenhydramine, which itself, is pretty unpredictable and has the potential to cause a complete break with reality, with another drug, being Zolpidem (Ambien, Stillnoct), that is perhaps even more well-known for completely fucking people's executive function.
I'm not here to give you shit brother. I think you're looking for an escape whenever you can find it. I've been in the same boat and maybe it's just a matter of experiencing these things for yourself, but eventually, even as much as I hated my life, I realized that taking a bunch of couch medicine was probably not going to make me feel any better.
As much as I really, really, really, hate to even say this, I would suggest having a few drinks to try to chill out before embarking on this sort of behavior. Case in point, this isn't really a "taste", this is a recipe for potential disaster.