if i could be anyone at all....

if i could say anything at all...

if i could do anything at all...

hard to know, say, believe that it would be much different because to be much different than what's happening now i'd have to be a different person and that changes the mental imagination game... I'd have to change the sentences to something like if anyone at all was me, if anyone could say anything etc. and of course this is an accurate description of what is and so does not require any ifs at all.