|You can subscribe to a Dynamic DNS service. For home use these are usually free and you get an URL that is automatically linked to your IP address, even when it changes. Some routers have the facility to do this built in but otherwise a small application running on your computer will do the necessary for you.|
Once you have the dynamic DNS set up you then need forward whatever port you are connecting with to the computer you want to connect to depending on what type of connection you are making. The routers manual will tell you how to do that.
BTW: There is nothing to be achieved by blanking out a 192 IP addresses. All addressees in the 192.168.x.x. range are private addresses and there will be thousands of computers throughout the world with the same IP address.