My mother excluded me from her will — before she died, my sibling cashed out her annuity policy, on which I was a beneficiary. Should I sue my family?

My mother excluded me from her will — before she died, my sibling cashed out her annuity policy, on which I was a beneficiary. Should I sue my family?

'The annuity funds are now general-estate account funds, eliminating me from access to them.'