You're not using your wild shapes for anything more than as disposable HP points.
No, you are ... and you are using it wrong.

It seem to me like you wish to use bear the same as Bear in WoW is working ...
Can handle lots of damage, deals lots of damage, especialy AoE damage, can heal evectively ... and kinda never needs to leave its form. :-/
This game simply have different approach, and you dont play big strong durable tank ... you play versatile class that have many interesting options to use, wich you decided to ignore and complain about not being able to stand many more damage with one of your seven forms. O_o
To me, most interesting form for Moon Druid is raven ... you fly to the roof, thorn-whip enemy down ... or blind sniper and then dismis your form and shove him down ... there is many options, you just need to use them. :-/
Which is pointless because at 19 AC with shield+ necklace that gives me shield of the faithful for 21 AC total in humanoid form, going into bear form is completely inefficient as I can instead actually do damage with moonbeam and shilleighlah for far more damage and area control while avoiding most damage in the game and being abl to also heal my allies.
Moon Druid on level 2 is OP as hells, since you have double HP and simmilar, if not same AC as every other tanks ...
True, on level 3 its kinda simmilar (read as ballanced if you wish) ...
And on level 4 you are weaker than usual tank, not AS MUCH if you use certain spells, but still weaker ...
And that is how its suppose to be. O_o
On level 5 you are suppose to get stronger transforms, and once again be OP as hells ...
Then it goes lower, and lower ... and then you once again are suppose to be king of the forest.
True, druids should be quite stronger than they are now, since you are suppose to relocate your moonbeam even in form, you are suppose to have pact tactics, mutiattack and other stuff ...
But nothing of it have anything common with your AC.
If I wanted to spend 90% of the time in a far better humanoid form, I would have gone Land druid.
Maybe you should have ... it seem like it would suit you better.
And 120 HP is not that impressive when you're doing 7-8 damage a hit to a single target and eating 17-25 damage per turn because your AC is pathetic against lv4-5 bosses/fights. All you achieve in this game by stalling is getting your casters killed, because the enemies will just pelt Wyll or Gale and proceed to bum rush it while your bear form just sits there blowing wind at enemies.
The only enemy i can think of wich give you 17-25dmg per turn it either broodmother, wich you should be able to ignore in your spider form ... Githyanki patrol, wich is beating everyone's ass without proper preparations, since they are level 5 ... and maybe Bulette, or Minotaurs ...
Anyway kinda short list to judge whole class as useless. O_o
Well, if you positioned your casters so poorly, you cant be surprised by the fact they were killed.
