There is an question in my mind about taqlid. My question is that if for example I have research in quran and came in a conclusions after understanding and reading the whole quran but came with different conclusion in faith, now what shall I do?

One must be qualified to examine the entire Qur’an. Simply reading it is not sufficient. You also have to look at the tafsir of Ahlulbayt. What did the Imams say about the verses, and how did early scholars understand those hadiths? This is all important.

Can you provide me an example of how you came to a conclusion different from what we believe in?