I agree that hospitals generally have stock advanced directive forms. But that's what they are - boilerplate, one or two or three versions fit all.
If you live in an area where there are law schools, contact them to see if they have Estate Planning clinics. Some might be free or low cost, but you'd be getting the benefit of someone who's learning the law in your state.
Something else to consider that can save problems down the road is to actually TALK to your family members about your wishes, together if possible. If everyone hears it straight from your own lips there is less chance that they will disagree later.
The only problem with do-it-yourself legal documents, all it takes is one misplaced word to create a landmine later on. Or needing 3 witnesses when all you have are two, etc.
As for an attorney, check to see if your area has a local Legal Aid office which are there to help those who cannot afford legal advice.
You can do it yourself. Check with your local senior services or a social worker at a local hospital. Most hospitals have patients fill out directives when they are admitted. For power of attorney you can download forms from on line services but it's best to see a local attorney for a POA as there are differences in local laws regarding POAs.
If you live in an area where there are law schools, contact them to see if they have Estate Planning clinics. Some might be free or low cost, but you'd be getting the benefit of someone who's learning the law in your state.
As for an attorney, check to see if your area has a local Legal Aid office which are there to help those who cannot afford legal advice.