Im not listed as a child of my own parents. I no longer have my siblings or children, grandchildren or husband. ALL of my information is GONE!
You've probably just come up against FS's recent (ill-advised, in light of questions like yours) change: they no longer honor your choice of home person when showing you a chart/tree view. Instead, the chart or tree is centered on the profile you worked on most recently.
To recover from this change and see yourself and all your family, you have two choices. If you're on anything other than a descendancy chart, you can click the "home" button at the top right of the chart. It looks like a house. If you're on a descendancy view (where there's no such button), or if you don't like how that button always resets the zoom, you can instead click Recents and then the tree-stublet icon to the right of your name.
Only you can see and edit any living person, including your own profile. Since no one else can see your profile, then no one could detach you from your parents other than yourself. Likewise any of your siblings and children that are living, only you can see and do anything at all with.
I can only think of a couple of options here:
Where some of your living relatives listed as deceased by someone else, you linked to them, then they were changed to living and put as private individuals under someone else's account, the person that created them to begin with?
Did you accidentally detach yourself from them?
Did you see yourself as a living individual when signed into someone else's account, such as your husband's? Did you then create your own account? In your own account you cannot see the living people in other's people's account. You need to make your own copy of any living people you want to see under your own account until you can link through them to any deceased people.
The place to start is your Change Log which is found in the right hand column of your Person Detail page. Click show all and read through the history of your record there.
Post a general summary of what you see there without any private details. Things such as when your profile was created and what has happened to it since then.
Another place to check is your list of Private People found under the My Contributions tab:
If you are the only one there, then you do need to make your own copies of any living people you want to see in Family Tree and connect your copy of your record through them to your deceased ancestors.
Just click on the HOME icon to get back to your own personal tree view
(upper right hand corner)