Pleasure-less

Hi..
I don't know if I should name this a problem(only me) or is it just normal (it happens to everyone)..
But I think that my condition is really weird for me as a 21 years male..

It is like if I used all the pleasure I have , and now nothing seems to be enough to give me the pleasure and joy that I used to feel ..
And with all the pressure (social, college, family, world.. Ext)
It is even worse..

I find it reall hard to cope with people who are new or simply (not my type) and it puts a lot of stress and fake to spend time with them ..

At present, college and the final exams (i hate this seasone of the year ) are my worset fear ..I have really competitive collegues, and I find it hard to keep on getting on track of being the best as I used to ..

On the family matters.. I don't know..I gusse that all the stress and negativity that I get outside seems to come with me home and it makes me act not as the usual me, pluse, the way we act with each other at home its like if there is a a lot flamable ions in the air that is waiting for a spark to explode..even if we all know that we all love each other deep down ..but we simply can act positive..

On the world level .. It takes a press on a butten to turn on the tv, to feel that everything is going down..really the whole world is going wild..

Above all, the (pleasure dome) that I used to put m self in when I feel bad seems to be use-less .. And it appears that no matter how frequent I offer my self good..it is stell not enough..for example, food and hanging out with my friends was my first pleasures then movies,erotic pleasure came in and spending money and buying things also came .. And finally
I end up with using all but feeling nothing ..

I find it hard to accept being pleasure-less but I don't know what to do ?