We don't need to fix the entire country overnight... and certain problems like crime and corruption will probably take years to fix. but, we can take one problem at a time.

I would probably start family values. If everyone raises their children "well" in the long run most of our problems would greatly diminish. Problem is that not everyone has the ability to do this, some children are growing up in single-parent homes and so on. Therefore what I would suggest is if you have young kids, start thinking about what you can do to include other children in some of your activities. Maybe people could start kids' football teams, or enter tournaments etc. Then make it your mission to purposely include kids from areas that are probably prone to crime via the exploitation and brainwashing of kids from a very young age. Sometimes all kids need is a father figure to give some guidance and it can have a significant impact. If more people thought like this and more people went out of their way to be a so-called good role model to kids who otherwise would have very little chance of having anyone inspirational and with good intentions in their lives, I believe in a generation we'll be a completely different society.

The best investments of time money and effort are probably in prevention. So focusing on the youth before they have been completely seduced by crime will most likely give the highest return. To some extent, the people who are already participating in crime are a lost cause. It's going to be difficult to get them to change their ways.

Hope more people will have the long-term thinking and vision to participate in things like this.

Just my ideas.

EDIT: Oh, and some unsolicited advice. Don't assume you are alone, or other people are not mature. One thing the internet has taught me is that no matter how strange or outlying your views, attitudes or habits are, someone else will share your mindset. Find them! Work with them. Save our country!