AP Nasus just doesn't seem ideal, compared to Stack Nasus and Lane Push.
Why be Squishy and nuke with guaranteed poke when you can get 400+ Stacks and nuke while being nigh-unkillable? Or better yet, build two doran rings and tank, and have so much top lane pressure you always push your enemy out of lane, or force your jungler to set up his tent, in turn leaving your other lanes free of torture. AP Nasus is fun, but not ideal.
Lust, get your shit together my dude. The jungle is dope. If you're bad at Jungling, play Warwick. As a Jungle main for the vast majority of Season 5/6, what you're telling me makes me cry tears of pain. Warwick is a good starting place. Simple, great sustain, attack speed steroids to you and allies, a point and click suppress. Ignoring Krugs is like asking to lose the game. Red-Krug is Level 3 at 2:30. That's insane. If enemy bot is even remotely pushed in, and you have high gank presence pre-6, you should get kills or summs. If the top laner is overextended, you should kills or summs. As Lee, I always Red-Krug. I do it as most champions, asides those that can't start on Red without having a dicked clear. If my enemy jungler has a slow clear speed I'll bully him. Like Amumu, for instance. If I'm red side I'll go Blue -> Enemy Red (if up) -> Enemy Krug -> Gank Bot. If they have slow clear you'll likely just get their camps before they get to botside. If they start red, you might be able to push them out of the jungle (Denying them Level 3) or kill them at Krugs altogether.
You're a support player, so play Support Junglers. Like Ivern. A high skill ceiling but very effective in what he does. Support jungler doesn't automatically mean: Take bard into the jungle, go 0/9 and feed then get carried afterwards.
Anyways. Season starts tomorrow, right? I'm so excited to lose all the progress I gained over the previous ranked season. :^)