Studying endtimes is not a problem in and of itself. However, obsessing over an endtimes view where Christ's Body led by the Holy Spirit can't advance the kingdom of God and is doomed to failure before antichrist is pessimism not worthy of Christianity.
Christ overcame the enemy, not men. Men can be saved if they follow Him as Yhwh's Word and Spirit say clearly. Most men remain dead in sin and trespasses because they love priests, or religions, or gold, or silver, or mother , or father, or jobs, or anything else instead of Yhwh.