Will we ever get a routine down?

I feel like everyday is different in our house.  Trying to get my son onto a routine has been really hard. Every night he goes to bed a different time no matter how hard I try to make it the same. Every day he wakes up a different time, I think it depends on what time he went to sleep/if he wakes up during the night(which lately is more than not). Naps are always difficult and he fights them so those are always a different time everyday. He will be six months old on the 5th. I just would love some sort of routine, even a flexible routine. I feel like if bed time and wake up time were the same everyday our lives would run a little smoother. It'd be great for me too if wake up time was the same everyday because then I could wake up before him and at least shower. I normally have to wait until whenever he goes down for his first nap