So there are good and bad days I know but I am just not sure what is the common ratio and what about average and slightly below average days.

Whatever I do it seems that most of my days turn out pretty unenjoyable. I am not really suffering or in pain I am just kind of out of it. 
9 out of 10 days are basically meaningless boring empty blurs of mundane shit that I would happily just pass if I had the chance. 
So I wonder is it really worth it, you know everything? I am not suicidal tho just wondering. 

What are your ratios guys?