Genuinely hoping you consider seeking therapy because that preference sounds like it may have some deeper emotional baggage attached to it and you deserve to find someone who is your equal and your partner. Dating men who are twice your age and habitually go for women yours is rarely going to work out well for you. There’s a reason they are still going for the young, naive girls. You’ll eventually mature and they won’t. Who they are now at their big age is who they will likely always be.

Edit: not nearly twice, actually twice