It will get easier.
Thor and I have had some days like that.
I use a pitcher too in the bath too, which Thor hates a little bit less then being held under the faucet. I saw a groomer use the shower nozzle, but she held it all the way up to the dog's head before she turned it on, so it wasn't the same sensation as water thundering down on the dog's head.
I usually heat up a towel for Thor in the microwave and he loves to wrestle / be wrestled in it right when he gets out. For the hair dryer, I turn it on all the way up, but I let Thor stand a couple feet away from me and just aim it in his direction. He likes the heat as long as he can move while he's experiencing it.
Also, just a note, I noticed that Thor is much calmer if I fill the sink up first and then plunk him into it.
Final note on baths: speed is the key. You'll have it down to a science soon enough.