If you want to get super-effective workout in just 30mins then you have to apply these rules on your workout session.
limit your workouts to 35-45mins.
Take protien shakes regular and before workout take cabohydrates and after take protiens and amino acids
Make a habit to drink water regularly round about 12-13 glasses
You have to lift weight slowly during workout , which gives u stamina to lift heavy weights in just 2 weeks
d’ont ignore cardio exercises .
before going to gym , sketch a idle workout plain.
and the most important thing is that , if you want to be a bodybuilder star , u have to eat and perform like a bodybuilder.