I want to learn how to skateboard! ( Only people who know how to skate please )?

Okay, so I have a skateboard in my garage and I used it a few time's but now I wanna actually try too skateboard. I can't really do any tricks because I never learned. How do you think I should start off. Like go by weeks. ( And I'm going to practice daily ). You only have too do 7 weeks. Thanks, and please be descriptive on what I should do for each week. Thanks :]. ( Also I have the whole summer ahead of me and I'm 13, waiting for school too start so I can be in 8th grade. I plan on being a good skater by Freshman year )