You came here asking for help. You've been told multiple times to use a transaction accelerator. Have you done that yet? If not, then why did you bother asking for help?
I tried accelerator.
The answer always : "Submissions are beyond limit. Please try later."
There are slots hourly. If you wait and submit during first few seconds/minute, then you'd get in for sure.
Your BTC isn't "Lost". You wait till your tx is either confirmed or dropped and forgotten.
If you're willing to pay, then use
https://pushtx.btc.com/#/ Checked and it says it'd be about $7.50 to have your tx accelerated.