usually the question is always smth like to what extent/assess ___ and it basically asks how "successful" or "effective" (diff wording) smth is from memory, I usually go with 2 paras on my stronger argument (probably agreeing), then 1 counterargument which either impedes on the "success", thereby limiting it OR when its a different factor that contributed to make smth 'successful/effective' or wtv.
Sorry if this doesnt make sense lol it makes sense in my head

Also pretty sure u can go with 3-4 body paras.
for example:
View attachment 49825
Plan:
- Yes his contributions were very significant (if this is ur stance) - 2 paras on them, kinda centre them on a "theme" ig like one on naval etc etc
- However, he wasn;'t the only individual who contributed to greek victory as... another individual u think did great, for example Leonidas or Miltiades... 1 para
OR: ur argument could be purely on him but maybe one para where he went wrong/didn't contribute greatly (again, ur choice - have relevant evidence for all of this)
- then u can say smth like Themistocles contributed to GV in the Persian wars to a moderate extent/ significant extent however ______ slightly impedes on this, thus rendering his contributions to GV to be of a moderate extent.
sorry for the yap if this doesn't;t help at all, but overall my tips:
- VERY clear thesis - can be the end of ur intro but ensure ur introducing sentence answers Q
- just elaborate a little bit in intro, mention of what ur body paras abt
- IF RELEVANT, mention reoccurring historians
- last sentence ties up & reiterates ur point - makes ur thesis CLEARR!! (UNDERLINE so markers can see)
Bodies:
- thesis statement specific to that body which is ur agreement/disagreement
- explain stuff according to wtv the Q asks, implement sources, analyse ur sources on their usefulness, what they reveal, reliability/limitations/bias - dont overdo it unless it is a source based Q, this is usually for ancient sources. have modern sources too, although I don't think its VERY necessary to analyse these - maybe js mention that they're more reliable due to research/proof check etc
- do this as much as u need for taht body js make sure it proves ur point & isn't tooooo much cos its ur opinion ur just using the sources to back u up
overall always have a link to the Q in opening and closing of all ur paras and make sure ur approach is thematic.
again sorry if I didn't explain this well or made typos cos i'm rushing rn I need to revise!!

Good luck!! I absolutely HATE greek world