f-1 reapplication methods if visa is rejected for the first time

I got a reject for the f-1 visa.how do i reapply?could you send me the link? there is online option to apply for the visa again right?or do I have to fill the form manually?

AFAIK: you have to follow full processes again.

You should store your old DS160 file (.dat) so that you can use it again if needed