I'm VR 2 Sorc, used to do Dual Wield+Bow. I can give you some tips.

From what I can see, you're trying to mix it up a little too much. Whats your attribute point allocation? 49 magicka? 49 hp? 49 stanima? A mix of all of them?

For a melee sorc, I'd recommend going all in with 7 pieces of medium. Every bit of crit helps. Then pickup Thief mundus stone for more crit. Keep your gear up to date with equivilant Veteran rank gear. VR2 etc.

Yuo got flurry and critical surge. Thats good. But if you really want to go with a melee build, you're going to have to have more focus on it.

Try Rapid Strikes ( Flurry Morph. ), Blood Craze ( Twin slash morph with a heal over time attached. ) Although the blinding flurry morph is okay. I just like the atk speed icnrease. )

Critical Surge ( This is where your healing comes from. )

Now I'd suggest using Bound Aegis. This lets you overcharge armor at all times. Also I'd suggest running Thundering Presence ( lightning form morph. ) for spell resist overcharging and even more armor on demand.

If you must have crystal and mage's fury abilities, you honestly might as well just run resto staff for the 10% bonus damage and some heal utility.

I'm personally running 2 hander. 49 stanima attribute points. 7 pieces of medium armor. Thief mundus stone.

Brawler ( Aoe abiltiy that gives damage shield scalnig with amount of mobs hit. )
Rally ( Boosts damage % for 20 sec, heal at end. )
Thundering Presence ( spell and armor overcharging )
Critical Surge ( Heals from crits. )
Bound Aegis ( always on armor overcharging. )

For a pve melee survival build, It feels like Two hander outperforms multi mob pve content in the veteran zones more than dual wield in terms of survivability but dual wield worked decently.

Also as a tip you'l lwant to pick up as many of the fighter guild passives as possible. They work for most of all of your abilities, at least I beleive so. Nothing there says fighter guild only.

Also I see you have vampire skills. Get that drain essence. That is ungodly powerful in pve.

Also in pve, I found storm atronach is a good option over Overload. It can help do some decent damage as well as tank a ton of mobs to boot for you. Another idea you can try is Rune Prison. 15 second disable on one mob can possibly help if you're having trouble dual wield on 1v2 or 1v3 mob encounters.