Li-Ion batteries should be prevented from fully discharging if possible. Always discharging fully is not good for battery care and is a common misconception.
The simple fact is that smartphones have poor battery life relative to older phones of a few years ago. Basically the same battery tech but with higher demands (large displays, powerful processors, 3G, wifi, GPS) and the wildfire has a rather small capacity battery at 1300 mAh.
If you want to care for your battery then turn your device off when charging to allow it to reach the correct voltage threshold, only partially charge before usage. The latter increases battery longevity but means usage time between charges is shorter so is of little help for most people.
Turning off unused radios is the easiest thing to do (wifi, Bluetooth, GPS) or disabling background data usage. Unfortunately to make the most of your phone you probably want background data on.
I imagine this post has done little to assist you in your quest for longer battery life 🙁