How did Luke learn the Force so quickly when it takes other Jedi (including Anakin) years if not decades? And how long did he train with both Yoda and Kenobi?

Please quote your sources.

According to the Essential Atlas, it took the falcon weeks to get to Bespin.

The journey to Bespin takes the Falcon weeks on its backup hyperdrive.

- Essential Atlas

So with Yoda, Luke was training for most likely a few weeks before getting the vision of his friends on Bespin and then rushing off to save them.

Not entirely sure how long with Obi-Wan though.

Out of universe: Plot.
In-universe: He had weeks of training, and then a year to grow, gain combat experience, etc. He also got a handy rage amp boost against Vader.

BoD wrote:Out of universe: Plot.
In-universe: He had weeks of training, and then a year to grow, gain combat experience, etc. He also got a handy rage amp boost against Vader.

The RotJ comic said Luke was equal to Vader before the rage amp tho. And where did you get that he only had a weak of training from?

AlakanSpacewalker wrote:

The RotJ comic said Luke was equal to Vader before the rage amp tho. And where did you get that he only had a weak of training from?

I think he's referring to ESB Luke, not RotJ Luke.

It could be argued that RotJ Luke received better training than AotC Anakin because the stakes are far higher during his lifetime than they were in Anakin's life leading up to AotC.

I think he's referring to ESB Luke, not RotJ Luke.

Luke didn’t have a rage boost in ESB, therefore he must have meant RotJ.