Hello guys , I have spent a lot of time on this animation but it won't work , it looks ugly , i know it is my first animation ever but it is awful , Can you please give me some tips so my animations can became better ? ( note : used FPS is 24 )

here is the link : http://filz.us/24D6

It sure is. But every animation starts like that at first. If you practice every day. You'll improve.

Anyway, it's choppy. Try using fps 16 at first then gradually increase your fps once you get used to it. Also, practice your easing. I can see that you didn't gradually increase the speed of the stickfigure when he was going to kick that other one. You should slowly make it then make it a bit faster after a couple of frames or so.

Other than that, you should keep practicing at first and maybe post at that beginner thread first before making your own.

easing means, things slowing down before they start, or getting prepared before they do something.
choppy is basically the opposite

What ?! i didn't know that animating is complicated and hard ! guess i will stick to scripting , it is easier

As Spectre said, thats the meaning of easing.

Also, it's not that hard. At first, it seems hard and damn complicated. (I even quit twice in my early years.) But if you just follow the tutorials/advice people give you. It won't be that hard. Also, if you're having trouble with the brush, try using line tool. It's much easier to use.

Here's a good tip: don't move one body part at a time. It's something that I see much too often (especially in pivot). Try moving the entire body like it would naturally.

Quote from wailwail

Hello guys , I have spent a lot of time on this animation but it won't work , it looks ugly , i know it is my first animation ever but it is awful , Can you please give me some tips so my animations can became better ? ( note : used FPS is 24 )

here is the link : http://filz.us/24D6

don't quit, you can't do anything right if you always quit before you try it hard.
here, watch hyun's tutorial, i suggest you FOLLOW every little frame one by one, keep pausing and play, draw each frame close to it's original, when you're done, you should get the grasp of animating.
that's what makes me boosted at the start.
http://www.youtube.com/results?search_query=hyun+tutorial&sm=3

e_e don't give up too easily.
have you watched any tutorials before starting? If not,

here:
http://www.youtube.com/watch?v=zOouzsIPNWs
its Hyun's tutorial.

watch that, I can guarantee you'll improve

I'm using the line tool but his tutorial is about the brush tool

Then look for a tutorial that uses the line tool.

There's tons at youtube and at the tutorial section here at the forum.

Yeah, Hyun's tutorials combined with some browsing on the tutorials section of the forums, combined with a fairly basic understanding of physics, and animating is made simple/easy. If you're into reading, The Animator's Survival Kit is relatively useful...
Also, for your line tool predicament, here's a link:
http://www.youtube.com/watch?v=TNeULuErfsM
You can visit his channel, KLJF22, to see other tutorials and some of what can be done with practice

Quote from wailwail

I'm using the line tool but his tutorial is about the brush tool

Yes, but the concepts and basics are still the same, regardless the tool, line or brush. I still suggest you taking a look at that.

It doesn't matter. Tbh your stick figure construction is horrible.
The sticks hands begin at his head. Necks arn't good. They look like shit.
If you want to improve start using f7 instead of f6. This way you have to completely redraw the stick figure every time.
The reaction is alos to late.
practice anticipation, easing, and choppiness.
But of course practice makes perfect.