How is my Champion Pool for Ranked Gameplay?
I was placed B5 last season, and ended up just quitting LoL outright for the rest of the season, but I've decided to return. I was just thinking about my main, which for the last 2 seasons has been Nasus, and I was just focusing on the one champion but it's come pretty clear to me that I don't like the simplicity of top, I don't understand how to tank properly besides being the first to engage, it seems even with the right builds i'm always much more squishy than another tank. I'm a pretty solid jungler though, and a really positive player so I like working with my lanes and helping people out. Also I'm pretty good at being a ninja, not so good at stealing/early aggression but everyone has to learn their roles. Are these champ picks fine or should I try others/less?
Essentially, my champion pool looks like this, all in order of how much I know about/play them. If I had to say one specific main champ, it's probably my main bear :3. Volibear is my safest pick, but, I can usually snowball harder with Nidalee, also Mid isn't even listed because I won't roll mid in ranked, ever. It's always the longest queue time, and I never queue for it. I queue for Jungle/Top usually. And almost always get Jungle.
Jungle: Nidalee, Volibear, Shaco. Top: Nasus, Volibear. ADC: Ashe Supp: Thresh, Volibear.
Tips/Help would be super appreciated, I've been closed to criticism in the past and I think that was why I landed BV in the first place.
. So I would would a counter to those, maybe a ranged champ. that way if the enemy picks one of those before you pick you can go to your 3rd pick.
MID: 
ADC: 
SUP: 
. Play him mid/top/sup/jungle (maybe? It was a thing before) and for a good few ranks he wont give you much problems since dying is just part of his kit. But past silver 3+, unless you are good at him, you might want to start more meta picks.
