Returning the Stones

First of all, Steve has multiple places he needs to return the stone to: Earth, Asgard, Morag, and Vormir. He, of course, has Mjolnir and can, therefore, summon the Bifrost to get to Asgard. The Bifrost can go to all of the Nine Realms, but I'm pretty sure Morag and Vormir aren't in these realms. How the hell is he getting to these other planets? Did Scott shrink him a ship? Did Steve somehow learn how to control the Space stone to get to these planets?

Also, when he gets to Vormir, does he see Red Skull? Did they throw hands-on sight or did they just have a very tense conversation?

The Stones

There are four stones I have an issue with: the Space Stone, the Reality Stone, the Mind Stone, and the Soul Stone. The Space, Reality, and Mind Stones are in different forms when they're taken. The Reality Stone is the Aether in Jane Foster, the Space Stone is in the Tesseract, and the Mind Stone is in Loki's scepter.

There is a way that Steve could have reverted the Space and Reality Stone to their previous forms: the Time Stone. Doctor Strange showed us that you can revert an object to its previous and future forms (i.e. the apple). But that requires Steve to be able to use the Time Stone. Does he learn before he leaves? Does he seek out The Ancient One in the past to do it for him?

The specter is an issue too. I didn't see it with Steve when he left, unless again Scott shrunk it down for him. Did Steve have to build a fake scepter to replace the other one with?

The biggest stone I have a problem with is the Soul Stone. How exactly do you return the Soul Stone? To get the Soul Stone, you had to lose that which you love. So, what happens when you give it back? Would Steve get Natasha back? (And if he gets Natasha back, is that who he actually gets with and can't tell Sam because it will mess with the timeline?) What happens to it? Answers? I need answers.

After Returning the Stones

So, Steve decides to stay in the '50s with Peggy and live the life he was supposed to have. The scene is really cute (even though I ship Stucky). Does this mean there's been two Steve's all this time? Steve would have to stay in the shadows, otherwise, he'd change everything because Steve knows everything.

If Howard knew he was alive, he would have stopped looking for him and he would have had a better relationship with his son, and Tony could have never become Iron Man and therefore, never save the universe.

On the other hand, Steve knows everything. He knows about all the atrocities and painful events that will happen in the upcoming years. The MLK assassination, the JFK assassination, 9/11, where Bucky is, etc. He'd have to live with the fact he couldn't stop these events from happening and I can't see Steve doing that.

He said it himself in "Civil War," "If I see a situation pointed south, I can't ignore it. Sometimes I wish I could." So, he probably stops these things from happening and also gets Bucky away from Hydra. If he does mess with things, is he living in an alternate timeline? And that is a whole can of worms on its own because if he's in an alternate timeline, can he really return the Stones to their original timeline?

My head hurts.