Science suggests that people don’t really understand how “time” works. I suspect you are guilty of the same. The fact is that we cannot find any empirical evidence that “yesterday” ever actually happened. Hell, me typing the word prior to THIS one may simply be a mental fabrication used to justify my existence in the here-and-now.
The “future” operates under failed assumptions of its own. We either “write it” or it is “set”. Regardless of which is true we live the “present” under the assumption that we “write it” because we understand the consequences of assuming the latter are absolutely fatal, and thereby untenable.
There are 7 different fashions that we can "measure" "time". I shan't get into it here, but trust me, you've made some critically flawed assumptions which have (understandably) caused you a certain degree of anxiety.
All we can be certain of is that “now” exists and that the “past”, at best, exists only for us to navigate our way from the “now” into the “future”.
That is to say, you “remember” that when you went without food you were hungry, therefore you will eat food “now” to stop you being hungry “later”.
Bearing all the above in mind, your “past”, objectively speaking, seems to have armed you with a wealth of information on what “not” to do. Thereby I’d venture to extrapolate that there are very few people in the entire world who are better armed to plan a constructive future than you.
You should be pretty happy about that. No?
Ultimately, everything is about perspective. We chose to be sad when our mother dies (because we’re selfish). We chose to be afraid when somebody threatens us (because we’re ignorant). We chose to be excited at the prospect of adventure (because it grants us the ability to enjoy the one certainty in life, which is, as discussed, the prospect of the “now”).
So, what are you going to do “now” based on all the information that the “past” has armed you with? What are you going to make of your “future” “now”?
Please be aware of the fact that insanity is psychologically, the repetition of an action in the hopes of it producing an altogether different result. So, bearing in mind that you're (hopefully) not insane, you will have to chose to do something OTHER than what you did in your "past" in order to make your "future" constructive.