Other than the general moral principles most people hold regarding loving one another, helping others, and being a law abiding citizen, most of the Botchtower doctrines are designed to keep you isolated and under control.
I celebrate however I wish. Relationships are about treating people kindly. Regarding a partner, I personally am not the kind of person to jump in bed with anyone who comes along. I have to have a connection and feel love for that person. I don't give a crap about marriage since it is really all about property ownership anyways. If I was to live with someone for a year in my country, I'm considered 'common law married' anyways.
Part of the indoctrination of the Botchtower is to subtly push people down, telling them they are not good enough, not doing enough. Sometimes, it's not so subtle.
It's simply a choice as to whether you want to keep beating yourself up or not. If you need to, sit down and actually forgive yourself for anything you feel you have done wrong. Let it all go.
Look at your life anew. What would you like to do with it? What things do you enojoy? Start creating, designing, architecting your life. Maybe start by defining your personal mission statement and goals. You can Google mission statement and check out some sites. This is a link to Stephen Covey's page on it: https://www.stephencovey.com/mission-statements.php
Maybe read Covey's book "The Seven Habits of Highly Effective People". I also found his "First Things First" book to be good.
Letting Botchtower tell you what you should be doing, will only lead to your unhappiness.
Regarding Armageddon... it is not coming. It's fantasy. It's the ravings of a lunatic in Revelations. John of Patmos was either high or demented when he wrote that stuff. Also, FYI... the book of Revelations was hotly contested by the Council of Nicaea. It almost didn't make it into the Bible.