No one can actually "do it for you"
unless you make arrangements to meet them somewhere. At your own risk, you could certainly contact members privately to try and arrange such a thing.
We at LQ are best prepared to help you by giving the steps and then answering questions when you get stuck.
First, repeating the basic steps:
- Download a CD or DVD image (AKA "iso file") from the Debian website or one of the mirrors.
- burn this image to a CD or DVD, as appropriate.
- Boot the computer from the new disk (If necessary, change the BIOS settings to enable booting from CD/DVD)
- Follow the installation instructions.
For more help, ask us specific questions
---first, on the detailed steps and later if you get stuck on something.