[borgdefenser]

It is also a problem that the projects are not realistic.

What are you going to rebuild a banking mainframe system from the 1970s at home in your bedroom for fun?

I don't think it matters anyway. A 14yo thinking strategically like this will figure things out soon enough.

Being that young it would probably be best to not listen to what anyone else tells you though. Follow what you think is right and if it doesn't work out, learn from it. The whole idea could be explored and still not be old enough to drive.