The Elder Scrolls V: Skyrim Switch Cheats and Tips

You are not able to access Cyrodiil in the Elder Scolls V: Skyrim.

You shout his name to summon him and use dragon rend to force him to land in dragons reach, then you fight him to weaken him and either you or a guard drops the trap on him

It happened the same to me, but I solved it. Even if it says to press E, you must press instead the button that you keybinded to "interaction" or collect, in order to take the journal.

To open the door, equip the Bloodskal Blade. When doing a power attack, a red beam will come out of the blade. If doing a horizontal attack (done by moving to the side while doing a power attack from a standing position), a horizontal beam will come out, while a straight power attack results in a vertical beam. From the top of the stairs, with the reticle aimed at the glowing red fissures found at the left and right sides of the door, a horizontal power attack will unlock a horizontal red fissure. When a vertical fissure appears, a vertical power attack will unlock it. The sections of the walls will alter themselves along with the red fissures; continuing to aim the reticle and matching attack with the red fissures will eventually result in each side having no visible red fissures left. Now the door can be hit vertically with the reticle aimed along the new, centered red fissure. This will open the door

Find an amulet of Mara and wear it while talking to a person who you have done a favor for. A speech option about marriage will come up. There are characters who will not respond to any advances though: Thieves Guild, Dark Brotherhood, Serana, etc.