Thanks sir but i dont know how to get my bsv private key so sad
According to
Abra:
The Abra wallet is designed to give you full, exclusive control of your private key. When you first download the wallet, you are prompted to write down a recovery phrase: that is your private key. So long as you keep your recovery phrase safe and do not install any malware on your phone, your private key will remain in your exclusive control.
You should have written down or recorded the recovery phrase from the very beginning. Without that, your funds are pretty much gone.