I reached L100 within one Week. But i have to add that i used a mod that lets you adjust your start skills. I leveled everything to 50, instead of the default 15-25. Also boosted health to 500 and both Stamina and Magic to 250.
The main reason is that i really don't like mining ore, forging 100 daggers, sharpening and enchant them just to level up so you can forge a proper steel armor.
And as i play on Legendary level, you still have to avoid most fights in the beginning.
I used one of the hardest versions of "Live Another Life" and started by escaping this cell. You start in a rough spun tunic and with just 1 lockpick
The prison is haunted and sneaking past these ghosts is a challenge. So i beat them. That one was really close. As i also use death alternative, you have to be careful not to get robbed while down etc. Finally managed to get to the first ranger cabin, grabbed some gear and made some potions and made it to Whiterun, using the river beds, to join the companions. I completely ignored the civil war and also did not go near Helgen before L80. So no dragons either in the beginning of the game. This gave me the chance to do a lot of local quests and level up quickly.
I'm now finally for the first time in Riften and trying a new mod that lets you put the Thieves guild in Jail, including Maven
Always wondered why it was not possible to extinguish that guild. The missions are fun, but what they make you do is not. So this mod is just what the doctor ordered.
Right now i'm making new LODs as i was not totally convinced about the brownish color of the new mountains. They just do not fit in Skyrim. From a distance they looked cool, but the parallax effect was a bit off and there were a lot of visible seems and stretch marks. Also the color makes no sense in places like Markarth where the city is carved from local rock.
So nice try, but back to An Old Friends (AOF) Mountains. These are also part of my texture pack combiner. But i manually overwrote them now.
As these change the looks of the game i have to make new LODs.
I also forgot to patch for "Lanterns of Skyrim" and "Open Cities", so that has to be done as well.
Like mentioned in an earlier post, DynDOLOD takes some effort, but in the end the results are awesome.
PS You can always make changes to textures in an existing play through. Just don't change the load order of the mods and use all patches again to make all compatible.
Only removal of scripted mods can and will mess up your game.