You get back the joy of building things by building things. Something that worked for me when I was in similar situation was working on some Arduiono projects. It's not only programming, you are making something in the physical world as well. The projects are usually simple and small, you don't get burned out. The actual programming is pretty simple - you don't need design patterns, some heavy framework or functional programming to make few LEDs blink or a motor to spin back and forth.