Building things up are so important. Even if they dont always pan-out or even if they fall after they were built. There is always a purpose if something has been built. Even if that means for something even better to be built on top of it.
There are many things that can be built. Built a team. Built a house. Build a stable relationship. Build a car. Build something new. Rebuild something old. Build your dreams. ITs really up to you what you choose to build. Yes, it will take work and time, but its all worth it.
The trick here is to continue to build. I would suggest, if possible, to build multiple things as well. Im only suggesting this because there are so many different things to build that you are able to work on many things at once. You are already doing this so its more about bringing your focus to what you are doing.
Continue to build everything you need to be successful. Start small and build on top of your creation. It is one of the most rewarding experiences and achievements you can do. This doesnt have to be anything extravagant, unless you want it to be.