Anyways, i am not really sure where to start so i might as well start with offensive techniques?
The way i see it,there are three kinds of offensive jutsu.
-The Justu that use the ground as a medium,or travel over the ground,such as a earth wave.This Jutsu can usualy all be countered or avoided by the opponent using the same jutsu,or simply moving high into the air.
-The jutsu that are simply projectiles,such as blades bullets and beams.Easily avoidable and easily countered,they can also be sent back at you,eg if you use a measly D rank fire ball,and your opponent uses the S rank sphere justu,the D rank will probably just coat his wind and make it stronger,since the difference in momentum and power would be significantly large.
-The Jutsu that damage your opponent by changing their immeadite surrondings,such as creating a swamp or spikes beneath them,water or earthen lids above them,causing a tornado to come down from above them.
The Jutsu that effect your opponents immeadiatly surrondings usuauly quite large and are extremely useful,and harder to counter when used in combonation,if you were to cause spikes to rise from beneath your opponent,they would do one of two things,avoid the jutsu using something like Hurricane fist,or even creating a rampart beneath them to lift them up from the spikes into saftey.Or they would destroy the pillars in their immeadiate vicinity,through the use of a lightning jutsu that would emenate from all around their body such as lightning strike armour and chidori nagashi.They could destroy it with a lightning jutsu that uses the ground as their medium of course theres other posibilities,but most of them rely on the fact that your opponent has a unique KG or ability.This leaves like a 2/3 chance that they will use lightning so of course you may think to either use a wind jutsu that will strike them from above, such as severing pressure, but a better option could be to use Storm Upheavel, why? Because then if your opponent were to use a lightning jutsu, the water would immeaditly soak them and the ground around them,its a known fact that electricity conducts in water,so there is a high chance,that their own lightning will play against them,the water causing the lightning to conduct back on them and shock them.Also in the chance that they use Hurricane fist on the ground to escape,they have the obstacle of the water right above them,thus your enemy would still suffer impact injuries,so that leaves escape via ground and air out.
If theres a swamp beneath them,using hurricane fist or earth moving core to launch them in the air would provide them with the obstacle of the water above them,then blowing themselves to the side or forwards wont help much either,seeing as it would be a weakened transportation,since hurricane fist would need resistance from a solid or liquid,to apply the same force upon you to thrust you in the opposite direction,so Swamp of the Underworld and Storm Upheaveal could be a viable option.
Of course your opponent would still be alive,so then this is where you could use the "Projectiles",a fast moving projectile could be useful here such as lfalse darkness spear, but depending on what elements your opponent knows,and how you think he may react,or how he has already reacted,you may want to use something to once again take advantage of the situation such as a larger projectile instead of the more concentrated false darkness spear.Always think carefully before using Projectiles,as they can often backfire,or simply make the battle boring,eg you and your opponent continously exchanging projectiles,it leaves for a battle with very little imagination,and usualy ends up in the spammage and nukeage of S ranks
Note:This is the way i see things,i may have forgotten a few things,but hopefully this information will help you rather than hurt you. Always remember to have your own style,use the things that i am telling you and incorporate them into your style,dont incorporate your style around the things i am telling you.
Now Incorporate this into your brain and come at me.
Note II: I realise you may not be able to use all of these right now,but in time you will be able to,i will also cover things that are more suitable for your ranks later O_O.