Ive Been Facing Some Problems With Sperm Release For About

ive been facing some problems with sperm release for about one month. Before, when my sperm ejaculate it goes for a long distance with a high pressure and a big amount. Now, when my sperm ejaculate it only goes for a too short distance not even more than 2cm with a low pressure and short amount of sperm. why is that happening, and how can i cure it and become like i was?