It'd help to use it all the way down to a battery level of 20-30% (not down by 20-30%), so that we have a good picture of the battery usage over almost a full charge.
It'd also be helpful if you tap the Screen listing there, which should show you what your total screen-on time is. The Screen uses the most battery by far, if it's in use, so if the screen has been on for about 2 hours or so in that screenshot, you'd be on track for pretty good battery life.
I also notice that you only have a couple of bars on the cell signal indicator. If it's always like that, it would be helpful to see a Cell Signal Strength graph (again, you'd probably have to install GSam Battery Monitor or something similar to get that info). If your signal is always pretty poor, that can lead to a lot of drain.