The Book of Good Life

As we are already a ways into the Ten Days of Repentance, the time from when Rosh Hashanah begins until Yom Kippur, I have found myself thinking a lot about how to reflect on my not-so-proud moments of the past year, how to make them right, and how I can better myself for the future. I don't know about anyone else, but I have always found it difficult to apologize to someone. During this critical period, when apologizing for our misdeeds should be about as bountiful as blinking our eyes, I am finding myself having a difficult time remember who I have wronged and what I should repent for. I feel like I just need to apologize to everyone, but how impersonal is the "I'm sorry to everyone I've ever hurt" you see on someone's Facebook? Part of the deal is getting the person's forgiveness, and how can you do that through a one way social media post? I want to know that I am forgiven, and whether you think you are right or wrong, apologizing to and making amends with someone is a huge thing. I feel like H-shem realizes how hard it is, and we get rewarded for these difficult challenges.
On a different note, how can we know that we are sealed for a good year? How can we know if we are written to live or die? That is a question that I have been struggling with for a while now, and I don't know if I'll ever get the answer that I want. I guess there really isn't a way to know. I have come to the conclusion that our bitachon is what will get us through these times of confusion and doubt, and there are times when we just have to daven, daven, and daven some more that H-shem will write and seal us in the book of good life.
It is impossible for us to know where our path is headed. We may think we are going one way, and then end up doing something completely different. For example, I changed my major  just before Shabbos (yes, as a senior in college), and now I am graduating a whole semester earlier than originally planned aka GOING TO ISRAEL!!! What a different route I am on than I thought I would be even 6 months ago! So while we do teshuva and ask H-shem that we be sealed for a good year, we must trust in Him that whatever happens is for the good and that all we can do is work on bettering ourselves and everything else will fall into place exactly how it's meant to be. G'mar chatima tova.