I power through a bad flavor but powering right over to the trash bin, but I realize that is not an option when you can't afford a back up supply or can only buy bottle to bottle.
Of course maybe stay with that flavor if it does not cut through the nic jag to get you to vape it.. might be one solution to "how do I get down to lower niic strengths". I know not something you needed or wanted to hear either.
Sounds like you are pretty much a flavorless e-juice guy - just not into flavors or have not found one you do like - and thats hard if you can't take a risk you might order something you can't vape.
I don't really know if there IS a power through trick except to say that even the worse I have found seems 'vapable' after awhile it I have to keep vaping it. One thing I have caught on to is if I don't like the taste not smelling it helps to mute it so I vape so the vapor comes no where near my nose - not always possible but it helps.
You might just have to to the best you can, at least the best you can until the next bottle arrives. In your case I would say not to throw it out... just in case. The day may come where you can afford to stock up a bit and you decide to try a few more and find couple more you don't like. Many of us have found that sometimes 2 bads mixed together make a good

I actually have some of what I call my 'twin' sets - two bottle I have stuck to each other because I can't vape either by itself but mixed together they work.. the sticking part is so I remember that one needs the other.
Not sure where you got your e-juice but the named sounds like one that would need steeping, some flavors after they are mixed can need a sit around used for 2-4 weeks to 'mature', otherwise they taste horrible, especially if they just mixed it, give it two weeks and it might taste great, that's often hard to know if it does or not but in my case I give everyone a two week vacation when they hit my house unless I have gotten them with a vendor that dates their mix date on the bottle. Also make sure you shook it up enough before using it case it settled out and your not getting a good mix. It really sounds like it needs some sit around time if your tasting nothing it it like the name or description sounds. But you don't have two weeks, I know. I know with having DIY and reading a lot about it you can speed up the steep by warming it in the microwave and letting it cool but I have never done it that way. I know they say 'until little bubble appear' on the top but have no idea what amount of time to even tell you to start with. You might want to look in the DIY section where people have posted how the 'cook' up you own and someone talks about heat steeping.
You may want to buy a little bottle of e-juice sweeten to have around in the future - sometimes adding a a drop to a flavor you have problems liking can help too, and if you like a bit sweeter plain PG somethings you could use it then.