Wait until they die... seriously, don't give up. Don't fiddle with them Don't pull on them.. Don't dote.
Foliar spray is fine, if you live in a very dry climate, otherwise you are only promoting mildew and other issues. You can have higher humidity without getting the plants physically wet with a simple dome, if you want that.
as far as rooting.. there's no magic pill for that, but you can keep putting fancy stuff on it if you want. If you take a clone from a young plant, it's got a low chance of success. An older and mature plant will clone easily within 2-3 weeks or so, sometimes more. Fast ones will have visible roots within 7-9 days circling in a solo cup. This is mostly genetics.
Asymetric growth is a sign of maturity. Even then, it is best to way closer to 60 days before taking a cutting - not for health of donor, but because the clones won't root in many cases. Watched several rot for 35+ days before.. refused to lay roots. Took a clone each successive week and eventually they all rooted fine once the donor was old enough.
If it doesn't droop or wilt, it has enough water. If it yellows, you are providing too much light and it is cannibalizing itself.
When you see new growth, you can assume the roots are at least present, but it may take another week or 2 for vigorous growth to start or a reason to transplant.
don't touch it until you see growth... leave it undisturbed except to water and inspect carefully. Everytime you cause it to wobble early on you may have ripped a very sensitive and new root. Keep it simpler... don't make it more complicated. Clones do all the work. Just stay out of their way and don't overthink it. Some generic root hormone may even be akin to duck and cover -- just makes you feel good you used it,lol. But, they are all the same -- think 2 options for active ingredient.. and they are essentially the same molecule, which is why it has the same impact, if any. Don't pay $10-$20 for $3 worth of chemicals without a fancy graphic on the label. it's more like pharmaceuticals when it comes to chemical generics.. either it is the same or it is not, there is not getting around that with a label.