I am so bored and i need something to do!!!!!?

it is summer adn the past few days its been 100degrees outside and today its only in the 60s so i cant do anything outside! i am a little overweight adn i lost a lot of weight but i have more to lose adn i dont have any motivation! i just need a hobby that i can do inside that may help me burn some calories besides ditting on m laptop all day. i have some dogs but i cantdo much with them inside. also on the week of the20th my mom has off work so we can do something togeather but i need some ideas. my mom dosnt like doing stuff. she said mayne we can go to valley fair but i just recently went and she has a bad neck and i dont know if she would wanna! i just have the house to myself now and have NOTHING TO DO! not untill the 26th when i go to camp. how do i make a couple weeks go by reall fast??? please give me somethng! thanks! :)