You are correct about the finding the truth in your Bible. While you are reading your Bible, see if you can solve the following problems promoted by those who originated your doctrine.
One of Dispensationalism's most glaring problems is the claim to take a "literal" interpretation of scripture and then do the exact opposite. Listed below are a few of the most obvious examples.
Adding a gap to Daniel chapter 9, not mentioned by the angel Gabriel.
Stating that Matthew chapter 24 was written to the Jews when the text clearly states Christ was talking to his Apostles, who he knew would be the leaders of His Church.
Ignoring Paul's warning in 2nd Thess. chapter 2, verses 1-4.
Ignoring Paul's clear statements about the difference between Israel of the Flesh and Israel of the Promise in Romans 9, 10, and 11.
Changing the "so" of Romans 11:26 into an adverb of time instead of an adverb of manner.
Producing a pretrib rapture by claiming that 1st Thess. chapter 4 is not related to Matthew chapter 24.
Producing two separate kingdoms, the Church in heaven, and Israel on earth.
Claiming that God offered the kingdom to the Jews, but they rejected it. What would have happened if they had accepted the kingdom?
Claiming the last trumpet in scripture is not the last trumpet.
Turning the word dispensation into a time period instead of the act of administering. A pharmacy dispenses medicine. The Apostle Paul was dispensing the Gospel.
Also, please avoid all historical writings that show the true origin of the pretrib doctrine. It could make you uncomfortable if you see part of it started with the "vision" of a teenage girl in 1830.