Memory Issues

I'm 14 and have a pretty bad memory, I don't remember much from the age of 9 and younger and my memory is vague in certain areas. I also have a really tough time remembering names, phone numbers, math equations and even daily tasks but remember small unimportant things clearly. I forget to take medication often and have not been able to keep up a schedule because of things like this. Remembering daily tasks is the biggest problem when it comes to memory. I constantly get chewed out for not doing my homework, checking the time, taking meds, picking up the yard, doing the dishes when it is needed(even though I can see that it needs to be done, it doesn't register in my mind that I have to do it) I'm always being yelled at for it and i'm constantly apologizing for it. I say I have trouble remembering, but my mom yells at me and says try harder or to write reminders and alarms. The thing is is that I forget to do that too. I am at a loss for solutions and have nothing else to turn to at this point.