If you are a bitcoin owner at the time of the snapshot of BCH and BSV you can easily claim them by using coinomi wallet, there are dates for the snapshots and there is a way to insert it into coinomi wallet, use google search to find answers
Yup and I think it's on the coinomi site.
As far as I remember, you will need to manually input some codes and as per the instruction on the article then there you have it, two forked shit coins.
As what the above said, sell it with bitcoin and hold. Don't store such trashy coins.