And are any of the so called accelerators legitimate things or is that all just a scam?
There is one legit accelerator that will actually confirm your tx and not just rebroadcast, and that it is ViaBTC!
But on a simulation for your tx they ask for $130 so, looking at your $190 worth of
BTC tx, I doubt it is worth it.
So, the usual question,are you in control of any of those wallets, or are they custodial wallets? Once we know how that looks we can think of what other options you have, that is if you have any!