Mace Windu was going to kill the Sith and that was Anakin's job. The Force made Anakin permanently stop Mace Windu from re-attempting to fulfil Anakin's prophecy hence Anakin's words, "what have I done". Anakin would not have said that if he did not know what he just did. The force gave him the dreams about Padme because the Force realized Anakin was too close to the Sith and too much under the influence of the Sith, but also his love for Padme was way too strong. He was not patient or wise enough to be the chosen one.
Palpatine easily could read Anakin's thoughts, however when Vader was in his suit Palpatine could no longer read his mind. It was completely necessary for Anakin to become suited so that Palpatine could not have sensed Anakin's thoughts, which is why he didnt sense he was going to throw him into the pit while he was electrocuting Luke. Hence at the end of episode 3 when the Emperor asked "are you alright? Vader? Can you hear me?" versus when he was bare skin "save your wife from certain death" reading Anakin's mind like a Dr. Seuss book.
The Jedi were so blinded by their views that they did not realize that they were also unbalancing the Force. Their own rules and lifestyle led to their own downfall. They were so certain that their way of using the Force was the balanced way that they did not assume that in order to bring balance to the force they all had to die as well. The balance was only truly fulfilled after all the Jedi died, and after all the Sith died. Luke and Leia were all that was left, but Yoda and Obi-wan never taught Luke how the council worked or their rules because I think they realized they were also in the wrong.
Not allowing the Jedi to love or have attachment created imbalance and conflict as you can see from Anakin's story. The imbalance this created forced Anakin turn to the dark side. It was simple, all Palpatine had to do was offer Anakin a power he could not go to the council to investigate upon. He had no further knowledge of the information Palpatine gave him because he could not ask the Jedi "can the dark side ever save someone from dying?". Due to their arrogance and lack of empathy, Anakin was forced to either believe this information or not. Because of the dreams he believed it because he was too scared of losing her.
The dark side was a pure force impurity that brought nothing but destruction of millions and selfish needs.
The former Jedi council was also wrong!! Not allowing the Jedi to love or have compassion/attachments caused a minor imbalance in the force. Force-sensitive beings are also humans/creatures of the world capable of all emotions! Denying them of an emotion is denying them of their life in itself.
Not to go off in too much of a rant, the Force guided all of Anakin's actions. We are made to believe he was truly that way, but he was just a force entity the entire time. That is why he became one with the force at the end even though he spent half his life as a Sith Lord, without any training that Yoda, Qui-gon or Obi-wan went through. It was automatic for him. Just like him cutting off Mace's arm, getting chopped up and burned, going into the suit and then killing the Emperor. The force guided everything into place.
In the end all of this is a point of view, so I'm open for debate!