I applaud your understanding of your state. We all do fail and, if we're honest, we've all doubted when it seemed like He was not in a situation. We, however, server a God who never sleeps nor slumbers. There are times that His ways are so far above ours that we can never understand why things are happening. Don't forget Paul's inspired statements:I'm not playing with god, its just things happened..and life did too..im trying to find my way back to Him but its not as easy as it seems... :/
And not only this, but we also exult in our tribulations, knowing that tribulation brings about perseverance; 4and perseverance, proven character; and proven character, hope; 5and hope does not disappoint, because the love of God has been poured out within our hearts through the Holy Spirit who was given to us. (Romans 5:3-5)
Most people will honestly tell you that there are times they know persecution is happening, and they don't grasp it. Personally, when this happens to me, sometimes I am girded by my faith in Him and I communicate more regularly with Him (already a benefit of the persecution ... it definitely can bring us closer to Him) and trust Him. Sadly, even when He delivers me and I see how he was sanctifying me ... there are other times when I get frustrated and question Him.
You seem like an honest person with honest questions and doubts. Bring them to Him. He does not fear your doubts nor is he angry about them. Go to Him as your loving Father and you can regain that closeness. Being in a good body of believers where the Gospel is preached in its entirety (along with the rest of scripture) is definitely a step in the right direction. If you find a perfect church, they can't let you in (or me) because we are all imperfect and would thus ruin that perfect church.
Back to your original question, His word said he is coming back and I believe his word in inerrant. Will it happen in 6 years or 6000 years ... I can't say. But for thousands of people in the US every day, His coming becomes far less important than their going. So being ready is not just a statement about His arrival ... people old and young pass away from their earthly existence every day. Being prepared to meet Him is always a good idea. If he comes back tomorrow ... that will be great. In spite of being a highly imperfect parent, I am thrilled that my sons and their wives know the Lord (praise God as better parents than I can't claim that). But if He does not come back for 6,000 years (or 6 million for that matter) ... our lives down here are but a vapor ... and being prepared is never a bad idea. God bless.