“the rest of us poor shmos just sit around waiting. but in the end, Hashem will forgive us all and bring a blessed good year to everybody. kol yisroel yesh lohem olam haboh letova ulebrocho.”
Hashem won’t forgive you if all you are doing is sitting around waiting!!! You have to put a lot of effort into doing Teshuva! Once you have given it your all, only then can you say that you have bitachon that Hashem will forgive you.
And it VERY important to remember that Hashem will not forgive you unless you ask mechila from those you have hurt.
And not everyone has a cheilik in Olam Haba. There is a whole list of things that can cause someone to lose his cheilik.