alright, here's the update on my battery situation. it's working GREAT now, hardly draining any battery on standby! I figured out that it was a combination of bad phone signal and most certainly a wakelock issue, so thanks a lot for pointing that out to me!
here's what I ended up doing:
first, I moved my phone to an area in my room with better signal (I was getting maybe 1-2 bars beforehand, ugh sprint) so I'm sure that must have helped some. And I also downloaded wakelock detector like you guys suggested, and combined with GSam I was able to find what exactly was causing the wakelock...Now I'm not too sure if this was the culprit, because other people have this installed and they seem to have no problem with it, but I'm pretty sure it was Spotify that was draining my battery on standby. Since there's no real way to quit it aside from force closing it, it kind of just ran in the background the whole time. At the same time, I also noticed another app that reflected similar wakelock duration/frequency as Spotify called audioout_4 which I assumed was related to Spotify. Now I know many people have wakelock issues with audioout_1 or 2, but when I ran a search on audioout_4 I didn't get too many results...however, I force closed Spotify and the battery life on standby has been wonderful since...so I'm guessing that was it?
I'll keep tracking the changes though, just in case it's another app....
thanks so much again to the people who responded with suggestions! I really appreciate it, this issue was driving me crazy haha