Sasuke didnt get help during the fight against Danzo. Tobi did not move at all!
Karin thought she was helping but Sasuke seemed to already have some idea of the technique and then used the that knowledge to trick Danzo into confirming it." Props to Karin for Trying but as you can see Karin said she figured out he tech but before she could tell Sasuke, she was interrupted:
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I think Kishi decided to show parts of the fight from Karin's perspective just to inform the readers. Also kishi never shows the readers exactly what sasuke is thinking during battle, barely even during speech. So i think kishi was trying to maintain this pattern.
People say that Gaara saved sasuke during the fighting against the Raikage but It is argue that he saved Raikage, it can also be argued he saved both of them because how exactly could Raikage have been saved from Sasuke's attack:
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Raikage was tossing his entire body into a piercing Amaterasu/Enton attack. Raikages Slice and heal combo would not work with an entire body. Speaking of which Raikage needed
help to even achieve this task.
Someone also claimed that sasuke ran after seeing Gaara? This is truly incorrect. After Sasuke saw that with depleted chakra and being surrounded by a group of ninjas that with their combined talents could kill him he decided to return to his original objective.
Group of Ninjas:
Temari
Gaara
Darui
Kankuro
Sasuke has acheived alot on his own why not give him the credit?