Your mother and any siblings she has will get it first. So you are a generation away from the bulk of grannie's bucks.

And you are addicted to her pain pills and could easily overdose by mixing them with some booze and might not live long enough to inherit a hairpin.

Better you should just go out and start to make your own money and figure out a way to be successful enough that it doesn't matter if you inherit or not.

Even if you inherited next week, sounds like you would just blow it all on pills and junk and be just as pathetic, drugged up, and probably broke as you are now.