you need to start thinking about the future, for your children.
think about where they will be if you die
if you don't want them to be there, then you need to think about what YOU need to do to ensure that doesn't happen
if you don't get help then i think your chances of losing them will greatly increase.
if you show that you are willing to get help, that you ARE getting help and doing the right thing, then your chances of keeping them greatly increase