I hear you.
Crack is highly addictive, and therefore very expensive given how much people get through. Its good that you give her food not money as we know where that would likely go.
Being engaged with alcohol or drug services is a start, but honestly nowhere near enough. Often these services are strained and doing their best to be fair. In order to straighten out properly a different approach is needed.
Does she want to stop all this or see what its doing at all? This is the key to recovery starting