Weight loss please help me?

i am 13 years old i wiegh about 190 pounds yea i know alot but any way heres where i need help first i eat a ton of junkfood and cant seem to stop and i play games and my mom tells me to go outside but theres nothing to do fun heres all the things iv already done and got bored with biking,scooter,hiking,walking/the dog to,and thats really about it i cant go to the beach or i cant go swimming my family doesnt hav that much money. im so imberrased with my body i keep a hoody on in the summer and spring winter and fall i dont know what to do i need to loose wieght please help