Oh my god A level is GCSE X 1000000. Not trying to belittle how hard the GCSE is but wow... It steps up massively.
dude man your making me cry, oh wait there an onion being cut lol. but seriously, some of my older mates dread history at a level, plus i think its more like gcse X 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Keep doing past papers they are the best source of revision, do them in exam conditions as well although you should read your notes don't use them as your only revision source because when you come do the exam you won't be used to doing the paper itself. Hope this helped.😀