Hello guys I start recently working on binary exploitation CTF I’m still noob.
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I have this vulnerable code I need to exploit it

Any help or suggestions please ??

I tried to use the same technique here and even the same code
https://ir0nstone.gitbook.io/notes/types/stack/got-overwrite/exploiting-a-got-overwrite#aslr-enabled
but it didn’t work for my case

so I tried this one also
https://axcheron.github.io/exploit-101-format-strings/#code-execution-redirect
but it didn’t work (it could be possible I made some mistakes here because it is for 32bits while I am using 64bits and I am noob not used to play with bites)
I tried to disable the ASLR and find a result at first then enable it because I need to find the flag remotely and even without ASLR I couldn’t solve it