I see you're a smaller frame, but don't overfocus on eating "clean" and trying to keep your abs. i don't follow boxing or wrestling, but someone like UFC flyweight John Dodson is your height and walks around 150-160, so I'd maybe keep that as a ballpark mid-term goal to shoot for.
Either way, eating will really be the key.
Something basic, like an upper/lower split, would be better than an imbalanced routine like you mentioned:
Very relevant question.
If you're "retired" from the sport, you're going to approach eating and training somewhat differently than if you still have to "worry" about being in fighting shape.