Perhaps one should first consider what dating IS.
Dating is the current mode for determining if you want to marry a person.
If you have discerned that you do not have a religious vocation (always the first thing any young person should consider) and that marriage is your vocation, then determine, are you ready to marry? If the answer is no, then, there is no reason to date.
If you are at a place in your life where you are ready to marry and start a family, then, the first thing to look for is someone who shares your faith and values. There is a reason that Scripture tells us not to be unequally yoked with unbelievers. There is a reason that the Church strongly discourages mixed marriages.
When you are ready to marry, put God first in the selection process.