If indeed believers go through the Tribulation, I daresay many won’t make it.
Speaking for myself, I can’t take pain. If I have to see my kids tortured or killed, if I am tortured and starved for my belief in Jesus, I have serious doubts I wouldn’t crack and renounce my faith for some relief, or to relieve others. Not to mention the things God Himself is going to do...boils, sores, scorching heat, water turned to blood, etc. Ad Infinitum. The thought of having to go through the Tribulation is depressing, and how a believer in Christ can look forward to it, much less tell others to look forward to it, is beyond me.
The Tribulation referred to
1. happened to the believers in the period 69 to 70 AD - when Nero lit on the Christians as a good scapegoat. He also allowed Jews to persecute their fellow Jews (Christians were still a Jewish sect even if many were gentile converts)
2. the fact that as a Christian we have to expect suffering for Christ’s sake.
I also share with you the same worry about myself