Ok, you're not seeing the whole story yet.
From Android System Info, this is the shot I care about -
Now, here's mine, taken with Gsam -
Overall, when your screen is off, your phone is mostly asleep - according to the awake bar.
You've got some blocks of awake time in there, that could be email, social apps, etc etc.
But - notice that in the first third of your graph, where your battery is falling - mine is holding rock steady, not dissipating.
So the battery bar is saying that something on your phone is actually awake.
So - the stats you have are necessary but not sufficient to tell us what we need to know.
The real deal is that while those graphs are handy, they'll mask out awake activities that are on/off, on/off super-short duration.
I suspect that you have those and that if we could zoom in on your graph, we'd see them.
Good news - let's pretend we saw them anyway and take the next step.
On your first Gsam page shown - % of power - tap that and choose wakelocks.
Please show me that screen next.