Hard to Get
Right now, by the sounds of it, the reason she feels like she's in control is because you are trying to hard to pursue her. The easiest way to change the odds into your favor is to pull the same trick on her. Randomize your texting times, so she never knows when to expect a text message.
You should also try to make her double text. Let her have the last word, and then let her have the first word. If you are aiming to build interest in her, try to throw in some interesting conversation topics into the texts. They should be ones that really get her engaged.
A care package is sweet. Just don't shower her with it, and don't do it often. Scarcity is better than being common.
"There is no better than adversity. Every defeat, every heartbreak, every loss, contains its own seed, its own lesson on how to improve your performance the next time." - Malcolm X