Answer
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
Dear questioner, we are greatly pleased to receive your question which shows the confidence you place in us. May Allah reward you abundantly for your interest in knowing the teachings of Islam.
First of all, we earnestly thank Allah Almighty that he has guided you to the straight path. Now, you are an adherent to the teachings of Muhammad (peace and blessings be upon him) who is a brother of Jesus, son of Mary (peace and blessings be upon him). In more than one Hadith, the Prophet (peace and blessings be upon him) states that those who finally settled on the shore of Islam will receive a double reward and will be rewarded greatly. The Prophet (peace and blessings be upon him), says: “Three persons will have a double reward; a person from the People of the Book who believed in his Prophet (Jesus or Moses) and then believed in the Prophet Muhammad (i.e. has embraced Islam); a slave who discharges his duties to Allah and his master; and a master of a woman-slave who teaches her good manners and educates her in the best possible way (the religion) and manumits her and then marries her.”
Also, The Prophet (peace and blessings be upon him) says, “I have been sent to perfect good morals.”
It was from the pure and good example of Muslim merchants that Islam spread rapidly in South East Asia. Those merchants were well-known for their honesty and good character in a world full of corruption.
Now, it is your turn to play a similar role by inviting your relatives and friends to Islam through wisdom and fair exhortation, while keeping in mind that through your mild approach and good communication you will maintain their hearts and love. Confidence and affection will follow suit and will, in sha’ Allah, yield fruitful results.
As for your marriage, which you referred to in your question, there is no easy answer. Some families may get along well and some may not. If your family has accepted your engagement, this smoothes the way for your marriage.
Greek society is known for its conservatism and this can play a role in bringing about harmony between the two families.
You will need to think about involving your family and not allowing them to feel too left out. You can assign them and your fiancé’s family specific tasks in the wedding preparations. This can encourage them to feel useful and not out of place.
Finally, remember that as Allah Almighty has guided you to the light of Islam He would never forsake you. Supplicate to Allah, ask Him to forgive you and guide you. Ask Him to soften your family’s heart to accept you as a Muslim, your husband and Islam.
Almighty Allah knows best.