Unfortunately, as you are a minor, most real people can not talk with you.
You should be very careful if anyone reaches out to you - they may be a predator.
On top of that, most people will not take you seriously, as you are young.
I suggest you find someone of a similar age at school or a local event. Another suggestion is to ask an older family member to help keep you safe.
Last suggestion: just build it.
I want you to know that I believe you can do it.