My new fitness plan, will it work?

I just joined Goodlife fitness center(in canada) and i just went for my first time today.

im 15. and im going to try to eat healthy, and me and my mom go there 2-3 times a week for about 2 hours(sometimes more)
I plan on going to the tredmill(fast walking) for 30 minutes, the recumbent bike for 30 minutes and the Elliptical Trainer for also 30 minutes.
i'm 160 pounds and 5'6. I want to get toner and tighter before summer, do you think this will work? how much weight do you think i will weigh before summer?

For some reason, i want to push myself to the limit, i want to lose weight NOW, i always try to over exercise.
Will i look "skinner" or "slimmer" by the summer? I want to give up sometimes cause i always think i will look fat forever.
How big of a change before the summer?

ALSO: this semester i have gym 4th period. And sometimes i will walk home from school instead of taking the school bus. Its a 30 minute walk, and i have to walk up a big hill.

Don't try to "lose it now" That attitude usually fails. When you want to get fast results, you may end up frustrated and give up. I think what you have there looks really good. Good luck sugar!!

Yes it works. 50kg.

U will look more slimmer because this fitness plans works well too.

about 5 - 10kg

Hope u will success