How Do I Control These Visions?

I have no one to turn to, so I'm giving this a try.

I'm just a regular teenager with something extraordinary passed down through my family. Let's begin with my great grandmother.

My great grandmother was a very religious woman. She was kind, and wise. My mother told me she was very special for a very good reason. One day, my mother visited her, and my great grandmother told her she was going to die, and that she wanted my mother to take care of herself and be strong. At the time, my great grandmother was fine! She wasn't sick or suicidal. She ended up dying a couple of days later naturally. My mother said when she and my grandma were cleaning out her room a few days later, her perfume she always wore lingered the air and my mother knew she was there.

Fast forward to the present. My grandmother always told me I was special and our family had these psychic happenings, but I never really believed in any of that, until one day. One day I had a dream I was shopping with my father, and in this dream I had the option to pick one of two things. The dream also revealed the consequence of each thing (it was really weird).

Years later, I was sleeping and a deep male voice whispered in my head "It's coming". I suddenly woke up and checked to see if anyone was there - but I was home alone 6 in the morning. Suddenly, my father came in and told me to get dressed because my mom was having the baby.

These small visions in my dreams seem to be very insignificant and quite far into the future - sometimes years! When I wake up from them, it seems as a normal dream where I go about my day and do normal things - later I end up remembering everything in the moment, as if I've lived through it before... These dreams show me everything in my perspective... Every little twitch of the eye and every though - yes, in these visions I even see myself think "Oh yeah I remember this from a dream".

These are happening much more frequently this year and I really want to expand and learn to control this, not conceal it. Is there anyway for me to remember these visions fully, and even gain knowledge from them?

Please help me figure out what's going on, and how to control it. Thank you for your responses.