5k training tips and times?

Don't listen to spagett. 29 minutes is not terrible. I'm 17 and this is my first year running cross country and track and my best time for a 5k was 26:15. You're fine. =)
Running just 3 miles is not going to build up the endurance you need if you want to cut time. Try running around 5-10 miles. My coach trained us on once a week 6 or 7 mile runs that included hills. Also, try parking garages and any hill work you can get. It's a great free way to involve speed and hill work because they have inclines and stairs you can run. And run every day too. That's the most important thing to do. It might help running with a friend to help motivate you to run every day. (By the way, don't push it trying to be amazing in one day. Gradually work.)
Good luck and hope this helps!

hahaah spaghetti your an idiot. 29s for girls is just as bad as 18s for guys. nowhere near competitive. back to your question - yes dropping weight will help, but like a couple other ppl said, you need to build endurance. and alternate your days between hard and easy, so that you have time to rest your body. and dont feel bad id you want to take a day or two off here and there, it is actually encouraged. just remember to ease into training. or you will have injuries.

29 mins is pretty terrible. I run low 18s and im not even close to first place. losing 15 lbs will help but you gotta run everyday, some longer distances 7-10 miles to buld endurance, and also shorter distances to build your speed. if youre gonna weight train, keep your reps up towards 15 so you dont put on too much muscle which will increase your weight and make you slower. you can do ladders; half mile, mile, 2mile, 2 mile, mile, half mile, all at moderate intensity. join your high school track or cross country team.

well im a male and we generally run faster than females. but 26 is still pretty bad. i mean its not terrible, but its not competitive either. i dont know what your goals are. i guess what im saying is it could be worse, you could be obese and not able to run at all

i run 17 min 5k. just keep training