What do you think? Do I have a chance, should I worry?

Every single one of my cousins that live here in America have gone to the University of Delaware and became some type of succesful. My sister also went to UD. I'm scared out of my mind that I won't be even considered when I apply to UD this coming fall. I am a rising senior and part of this un-necessary stress is my fault, and my ignorance towards education itself. I never had a love for any of my teachers; I hated the way the teaching system worked. I had OK grades. Freshman and Sophomore year, I took all Honors classes and 1 or 2 College Prep. Junior year I took all honors and 2 AP classes. My unweighted GPA is a 3.0 and my weighted is around a 3.4. I ran track Freshman year and played soccer sophomore year. I volunteered at my schools community day, and also volunteer at a Hospice. I visit a 90 year old lady w/ dementia who is dieing soon. Its gonna be my third visit today, shes sweet but doesn't talk much..COOL. I want to play Volleyball my senior year, and I am involved in my schools choir. We got invited to London next year!! I want to join a club senior year, I'm not sure exactly what yet. Maybe yearbook. Or YELL (promotes safe driving) and I also signed up to do morning and afternoon anouncments senior year. (Counts as volunteer hours) What are my chances of getting into UD? And do you have any advice on what I should do to increase my chances of getting in? I WANT/NEED TO GET MY BUT INTO UD! My father will not pay tuition for school out of state, only instate which is UD. And he wants me to stay close. And I love UD's campus. My sister also loves the school. I write killer essays, and have awesome recomendations already. I'm planning to apply to jobs after I get back from my 1 month trip out of the country w/ my family. (I know 2 languages, English and Farsi...some spanish) I also am planning a visit to UD...will that help me?