wantstoleave,
The magical bubble of "Bible prophecies" (in the sense of long-range predictions making up a "script" of events to happen in the future, close or distant) can be burst in a number of ways. Wrapping your head around history, what it is and how it works, the part of chance and free interaction of many things and subjects it involves every minute, may help you realise that the future cannot be actually written in advance anywhere, anymore than you can get the weather forecast for next month exactly right, for exactly the same reason: over a certain number of parameters prediction is strictly impossible, unless they are no parameters at all and we are just characters and props in an already shot movie -- in which case any sense of "we" implodes. That's probably the shortest way for even a mildly rational mind.
Now if your idea of "God" prevents you from reaching such a conclusion by a "rationalistic" way, because the Bible can be a magical book after all, I'm afraid you'll have to embark in the more difficult (although interesting) task of historical exegesis: figuring out how the texts were written and what they were originally about, how their first meanings were lost and drifted along the centuries to become material for modern prophecy-making.
You will then find how the "Olivet discourse" was modified from Mark 13 to Matthew 24 and Luke 17; 21, how "the coming of the Son of Man" was expected before, along with, immediately after and then much later than Jerusalem's fall to the Romans in 70 AD. You will analyse the context of 1 Thessalonians and find out that "peace and security" is actually not a forewarning sign, but the normal state of events (like people "eating, drinking, marrying, buying, selling" in Luke 17) before the "day" comes "like a thief in the night" (i.e. anytime). And you will see how this "no-sign scenario" is explicitly contradicted in 2 Thessalonians 2. You will notice how a number of early Christians thought they were the "last generation" before the perspective changed...
Actually you will get back to the first approach: understanding how history works, only within the Bible itself.