All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Your first marriage is valid, so all its legalities are effective. Your parents' disagreement with your marriage does not have any effect on the validity of your marriage. Thus, renewing your marriage does not have any results.
As for divorce, writing the word of divorce is one of the means of divorce. If you have written with your hand the words 'I have divorced you thrice' intending three divorces, the divorce would be considered thrice. The same ruling applies if someone else writes the above words and you sign on them while you are legally competent and know what is written. In this case, your wife becomes forbidden for you and you cannot marry her unless she marries another man a serious marriage and he consummates the marriage with her and then he divorces her or dies. When he divorces her voluntarily, then you may marry her. Allah Says (what means): {…And if the latter husband divorces her [or dies], there is no blame upon the woman and her former husband for returning to each other if they think that they can keep [within] the limits of Allah.} [Quran 2:230]
Allah knows best.