How to get a flat stomach?

[CutieApplePie]

I am a naturally small person, I weigh 45kg so I don't want to lose weight necessarily. However i have a bit of a tummy which I don't like and I really want my stomach to be perfectly flat. I am in Year 12 so I don't have lots of time to go on regular runs or go to the gym.
Any suggestions would be brilliant, such as what exercises I could do, thank you! xx

Updates

+1 y

Also, if you were to suggest I should do crunches or sit-up's etc. How many do you reckon I should do each night, and how long would I have to do that for before I actually noticed changes? :))

[rjroy3]

If you don't have time, then eating better is your #1 option. But finding 10 min shouldn't be hard. Just do Planks and Tummy Vaccums, maybe even leg raises because the lower abs give you the most bang for your buck. Your abs will get tighter within the first week or so, but a good diet will make this go much faster.

[CutieApplePie]

Thank you so much, this is the perfect sort of answer that I wanted! I'll google how to do the Tummy Vaccums and leg raises properly, 10 minutes is definitely what I'm looking for :)

[Anonymous]

You need to eat right you can exercise forever but if you eat junk it will never happen

[CutieApplePie]

that's very true, there is a limit as to how much junk food a person can consume!

[IsabelleBk]

Hit the gym, start doing some situps everyday.. don't eat junk food.

[CourtJester]

Focus on diet: reducing carbs to 100g a day and eat plenty of fibers (veggies/fruits). Being active is just bonus and quickens the process.

[Iron_Man]

Trim down run your ass off everyday cut out the junk food

[CutieApplePie]

I have been cutting down the junk food, but i will continue to do that thank you! and as i said in my description, I am in year 12 so unfortunately I dont have the time to run my ass off everyday! :(

[Iron_Man]

oh your so young I never read that

[CutieApplePie]

That's fine haha, yes I am young!

[Iron_Man]

I wouldn't worry so much about trying to get the perfect flat stomach at your age. You want to eat real well so you don't stunt your growth. Just do what other 12 year old girls do. If your over weight just cut back
like I told you before on the Junk food