How to improve my basketball skills? (10pts)?

Basketball season is drawing near at my highschool and I want to tryout, yet I haven't played basketball for a few months, so I need to sharpen my skills before the season. Let's start off with, I'm a female, 5'2, and 150 lbs and I'm not much of a runner because of my asthma. I play forward and a few times at center. My house is blocks away from the local court/park and too small for a personal hoop. In addition I have no car because I'm too young to drive but I do have basketball gear (clothes,shoes), a basketball and a moderate sized yard (but w/grass). With all this, what drills do I need to improve my skills? I'm really good at being aggressive but my stamina, dribbling, and shooting needs work! Basketball season starts in a month and a half and I'm available only on weekends (I'm working). Ill choose the best answer which covers what I asked and the details I used!