How to lose weight in an apartment?

I am homeschooled and I have recently become overweight. I am about 5″0 at 136 pounds. We live in an apartment and I can’t really go around much in this neighborhood. There have been some crimes recently and we live next to a train station and a highway. My parents won’t take me to a gym and we don’t really go much anywhere. My dad SOMETIMES takes me to go on a bike ride, but that’s once in a blue moon. I need to lose weight. I am only a kid, so I don’t know how to exercise. I used to be really active and skinny, but ever since we moved here, I can’t do much. Please help. Don’t bother and waste my time if you have insults or ridiculuous idiotic things to say. Only people who want to help me. My idea to lose weight would be about 20 to 30 pounds, and I want a six pack. Please help. Any ideas of how to lose weight accepted, except insults.
It’s possible Janet M, that you don’t have any contacts or fans for telling others they’re rude.