I found that address at
https://www.bitaddress.org/ I tried to do it there but I have no clue how to make a similar one
all generated address there are different
You can't generate custom bitcoin address using this website, it's just random address based on your mouse movement.
Better be careful when trying to generate custom addresses that are called bitcoin vanity addresses, especially if you are using website found in internet search.
I recently saw there are new BIP proposals that are making easy to remember addresses similar like email addresses, but this is still in early stage.