For me I think it works more the other way - it is the emotion I remember. There are big chunks that I don't remember much about. Mind you I am 52 now so that could be normal - it's a long way back

The bits of the past I remember most vividly though are the emotional things. I used to think it was about me bearing grudges but I now see that the reason I remember those things is because there were more extreme emotions attached.
It is good they say to focus on the here and now - mindfulness of course is all about that. The past - I am not sure it does anyone any good to be ruminating about the past all the time. You can't change any of it so what's the point? But the future, the future is the one thing you can do something about. Nothing is decided. Perhaps you should try, say, to focus on the month ahead and what you would like to do rather than try and predict the long term future. Maybe you could even get a diary or planner to help.
Remembering the past? The thing that always helps me with that is to write about it. You might be surprised what you do remember once you start.
This morning I opened a box that's been in the spare room for longer than I can remember. In it were all these books from my childhood that I had completely forgotten about. You'd be amazed what memories something like that brings back. Perhaps you have things from the past too. It might help you remember, if you want to of course.
Don't forget in all of this you are on meds - they may be a part of why you're not feeling the past. I have certainly taken meds like that at one time or another. They can make you feel a bit detached especially with your emotions.