6 - British / Australian = I have already finished .... an American might say "I already finished". This American use of past simple is the same for other key 'result' words like 'just, yet, still'
10 - your sentence isn't wrong grammatically, but you're repeating ideas with 'always' and 'all my life'. Best to say either "I've always lived in..." or "I've lived in ...all my life"
You don't have a sentence with the key time word 'recently'. Is it past simple or present perfect :)?