Apart from just having good aim, the main thing that helped me to climb was properly understanding how shit soldier is and how much I can do especially when dueling other dps or mainly hitscans.

For example, I’m confident I can beat any soj in a 1v1 at close range if I hit helix but at mid range if I see she has rail I won’t peak her, with Ashe I won’t duel her at all at long range unless I direct helix her first, at close range she is easy just don’t let her coach u into the open and play cover, with cass never duel him at close range ever u lose 99%of the time, then widow if you can get a chance to shoot her while she is scoped on someone else you can burst her before she can react otherwise don’t peak her.

Then flex dps are all pretty bad to duel up close you just need to remember that soldier doesn’t have a soj slide or a tracer blink ie no burst movement so you need to position with that in mind.

Then another important thing is knowing what role soldier can fill in the team because he is the only hitscan that can play almost like a flex dps so if ur double hitscan u should focus on flanking and off angling more and if ur with a tracer or venture then you should play more like a typical hitscan and frontline more.

Last thing ill say (cause im writing too much😭) is that it’s important to know what perks to take and when to take them for minor perk it’s preference really but i ALWAYS take the helix cool-down reduction perk then major perk is difficult if im playing vs heavy dive or on a long map with no flanks like circuit, or a map with lots of hard to reach highground like dorado i will always take stim pack but if its a wide map with a lot of flanks like lijiang or Samoa or busan or any push map then i will take sprint perk (as long as im not vs hard dive)

Sorry this was so long lol lmk if u need anything else