I want to log into my Rockstar account from Sony to play with my Xbox user from Sony, but I...

You need to contact Rockstart support for help with transitioning characters

We have no ability to support PlayStation outside of MS titles.

No, you cannot transfer your character to your secondary account.
Transfers ceased on March 6th after the agreement between Sony, Microsoft and Rockstar ended.

If you want to play on Xbox One, you have to start again.

Rockstar isn't partnered with either microsoft or sony and of course sony and microsoft also aren't partnered so I don't see this happening but of course you could Always ask rockstar over on their forums.

[quote user="ZIG ZAG STORIES"]

i Just read that you mus log in on the ps network in order to play games . on the forums I read since the network was overloaded for sony people could not log on. well that meant no game play till you do. its funny how sony kept that a secret from everyone.sounds
like you need to be online. I hope this is false info I read sad if it where true

[/quote]

Well Im happy to inform you that this is entirely untrue

Sony has given me exactly what I want from a console. It will be Sony for me too.