Th7 upgrade help

Im at th7 and im a little confused to what i should upgrade. I have about 1.5 million elixir banked right now and looking to upgrade something quickly with that. My current levels:
-town hall 7
- (4) lvl 4 army camps
-(2 lvl 8) (4 lvl 9) elixir collectors
-(2 lvl 8) (4 lvl 8) gold mines
-(2) lvl 10 elixir storages
-(2) lvl 10 gold storages
-(1 lvl 6) (1 lvl 7) (2 lvl 8) barracks (want dragon)
-lvl 5 lab
-(4 lvl 8) (1 lvl 7) cannons
-(4) lvl 7 archer towers
-(2) lvl 3 wiz towers
-(2) lvl 2 air defence
-(2 lvl 3) (1 lvl 4) mortars
-(2) lvl 1 teslas
-(71) lvl 5 walls
-(104) lvl 6 walls
-lvl 3 Clan castle
-lvl 2 spell factory
-lvl 1 barb king
-lvl 1 dark elixir storage
-lvl 1 dark barracks (want hogs)
IN MY LAB:
Archers- lvl 4
Barbs- lvl 3
Giants- lvl 4
Wizards- lvl 3 (want lvl 4)
Goblins- lvl 3
WB- lvl 3
Balloons-lvl 2
Healer-lvl 2
Heal and lightning spell- lvl 2

The ones i put (want) beside are the ones i was looking to spend my stored elixir on. Just cant decide. Just give me tips on what to upgrade in what order and so on and so forth. Thanks in advance.

Get your army camps to 6. No question.

CAMPS to LVL 6 asap boss! then the rest will work its self out...

Spell Fac; to get Rage and three-spell cue

Dark storage
Dark barrax

Wiz next in lab IMO, they help now that you have Giants done to tank for them, and Archers are done...

build up your walls while you grind those elixir bases upgrades. you should be in good shape.

Good luck

Offense is ALWAYS priority 1, defenses are priority 2.. If you don't keep your research lab going you might not finish all of the troop/spell upgrades before the buildings finish.. The heart of this game is farming so upgrade those archers, barbs, goblins, wall breakers, giants... (You must be able to farm ASAP)

Get everything you want upgraded. But you seriously gotta get our AD to 3+, upgrade your mortar to lvl5 and, get all of your walls to pink and get all of your camps to lvl 6 and upgrade your main troops to lvl 4