What are some exercises i could do at home that will help me in basketball?

I really like badketball and i almost play it everyday. I am pretty good free throw shooter and 3 pt shooter. But i cant jump really high or grip thr ball. Is there anything i could do at home that will help me in baskbetball in any way. I have 2 pairs of 30 lb adjustable dumbbells. I also have hand grippers to work on my grip. Suggest some good stuff and tips abd tricks are always welcomed.