It is good that you have your mums feelings at heart. As as your mum is a faithful JW, it would be good to use what is written in the scriptures as a source of hope. Prov 14:5 states "A faithful witness is one that will not lie, but a false witness launches forth mere lies.". Now, as a starting point, just to let you know that many of us here has found out that the date for the destruction of the first temple did not happen in 607BCE, as all the publications has stated. You can show her from the recent publications this point of 607BCE. And being 14 yrs of age, school studing is a must for your future. You then look up the date in ANY reference book available and show her what all resorces show that the date for the destruction of the temple was in fact 587/586BCE. It does not matter where you look, the evidence is there. (except from MOST of the WT books and mags.) Do your reserch on this matter, and show her your findings. I have just written to my mum, and i have put forward to her a question, "does she want me to go back to attend regular meetings and lie about the date of 607BCE and then be destroyed by Jesus when he comes for that 1000YR reign, or does she want me to tell the truth that the date is 587/586BCE and be saved? I sent the question to her this morning and i am waiting for a reply. To be a JW, it is obvious that I would have to say 607BCE. Now, according to the scripture above, a "FAITHFUL witness" does not lie! So, you can ask her if she wants you to be faithful to the Most High by telling the truth, or to be unfaithful to the Most High God- by lieing by stating that the Temple fell in 607BCE. This would put the "ball in her court". But, you must do your reserch on this subject FIRST, and then show her the evidence. To start you off, look up "Lachish Letters" that has been held in the British Musium on the website which were found in 1935. Even the brother that was behind the infomation that was in the "Aid to Bible Understanding" (before Insight Books) knew the correct date, but was under pressure of expulsion from Brooklyn, NY and inserted the 607 instead of the true date of 587/586BCE. All info is on the website under "Jehovahs Witnesses". By using this as a starting point, she will (or might) understand your decision for not being a JW. Happy hunting!