小生の理解は"devote+O1+to+O2"の構造でhalf as much time and energyがO1、solving problemsと worrying about themがともにO2で、O2同士をas you do
が繋いでいるように見えますが、そういう理解でよろしいでしょうか。as you do
にはそういう働きがあるのでしょうか
If you devoted (1)half as much time and energy to solving problems (2)as you do (3)to worry about them, (4)you wouldn't have any worri...