...The current game I'm playing has been going pretty well (absent glitches). I'm currently at level 48 and I haven't scratched the surface questing. Usually I save Soltheim (Dragonborn quest) for when I've exhausted most of the main quests on the mainland. So I have a way to go before then. The highest level I recall ever achieving is around 80. I plan to go for 100 this time around before I start over. You mention of "spell-sword" interests me having never seen it as an option. Next time around I'll pay more attention to character creation....
The highest I've gone is level 72; by then, sometimes sooner, I'm getting antsy to start another game, lol! I always use one-handed and destruction as my main skills; I can use a bow, but prefer to use Incinerate as my distance weapon. I also use Muffle/Waterbreathing to increase my skill points by standing in the Whiterun pool, using left and right hands to cast each spell until I level up.
I don't know anything about Silian Manor or Sjel Blad Castle; I must figure out how to get to Nexus. I have a Bethesda account, but can't recall my ID/password and Bethesda never sent me the email it promised to help me find them, lol.
I have yet to acquire every house available. Just started "Blood on the Ice" quest which will eventually lead to gaining the home in Windhelm.
I do that quest ASAP, because there is a glitch (on the PC at least) that if you wait too long, the quest simply disappears and you can't cheat it back in!
... My primary residence (where my family resides) is Heljarchen Hall. But I do rely on Silian Manor for crafting and storing all my "goodies". It has a neat little hidey spot in the main bedroom where quest items acquire can be displayed...
I start my "family" in Solitude, and move them to Lakeside Manor when it's ready; that's where I have a Master Bdr/kids room, kitchen, trophy room. Heljarchen Hall is my "woman cave", where I have my armory, another trophy room, and indoor greenhouse. Windstad Manor is where I build the three towers, Library, Alchemy, Enchanting, because the view from each of those towers is breath-taking!
One more thing before I'm off -- the "Imperials" for some reason always struck me as being the snooty side. You're not snooty, are you?
Nope, not snooty, but not a white nationalist, racist, bigot either, lol! Those damned Stormcloaks, always harassing anyone who isn't a big, strong Nord! But oddly enough, I always play a Nord female; guess I'm a social liberal even in Skyrim! :lol:
Have fun, and I'll keep trying to get a Bethesda account!