Druid Healing macro help

[Ualaa]

I'd switch it a bit.
All the conditionals in the front.

#showtooltip
/cast [mod:alt,target=player][mod:ctrl,target=target][target=mouseover][target=focus] Lifebloom

With Alt, it will target yourself.
With Ctrl, it will fire at your target; we shouldn't need target=target, but some macros work with this and don't without.
With a mouse over a target, it should hit that target.
And go to the focus if everything else fails.

That is assuming my macro logic works.