When you was 15;    

You only struggle with mathematics. 

When you are 16-17;   

 You only struggle with arts or science.

When you are 18-20;

You will struggle with your adult hood.

When you are 20-30;

You will start to struggle with yourself. Struggle to find your self . Struggle with  your uncertain future. Struggle to believe in yourself. Struggle with your fears. Struggle with your self doubts. Struggle with depression. Struggle with your responsibilities. Struggle with the demands of the society. Struggle with unfairness of the world.

In this process you don’t realise that  you already  entered into your adult hood,Without knowing when…….