Help!!How to automate my application??

my application works but i would have to manually enter all information and click buttons to make it work and I would like it to be able to work automatically.

I want my application to log in to youtube with a youtube account, follow a link to a video, click the like button on the video, go to the next video link, click the like button, log out and log in with a new account.

Currently i have it so i type in the user/pass and video link then click a button to log in, click another button to get to the video and click a final button to like the video(i have not figured out how to log back out after)

I would like to be able to have a list of preset accounts to log in with and a list of preset videos to go to and like.

Im fairly new to this program so i figured id ask for help and see what i could learn.

Thanks for the help.

If this is posted in the wrong section please tell me and ill move it.