“None is righteous, no, not one;
11 no one understands;
no one seeks for God.
12 All have turned aside; together they have become worthless;
no one does good,
not even one.
What Paul is saying is that no one - regardless of race, gender, ethnicity - has an advantage when it comes to seeking after and finding God. Every single person is in the same situation: We have rebelled, sinned against and are separated from God. The only way, therefore, to be in relationship with God is through faith in Christ. This means we put our faith in what God did for us, not what we can achieve ourselves.
That being said, in general, I do believe men and women can think about God and may find their faith in Christ differently because of the way they're hardwired. Women, for example, may relate, feel and ponder the love of Christ more quickly than a man might because they tend to be attuned emotionally. The main point, however, is that gender is not the crucial issue here. It is whether or not you put your faith in Jesus, believe what He did for you and repent of your sin. When you do that, you can have a relationship with God.
What I love about Christianity is that it is very fair and yet JUST. It does not depend on how good you are (or rotten you are); your ethnicity; your cultural upbringing; your talent; your wealth; or even your gender. Christianity says that we are all sinners and that God hates sin. Yet it also tells us that God loves us and sent his Son to die for the just penalty we rightfully deserve. And because of Jesus...
(1) Everyone is welcome (God loves everyone)
(2) Everyone can meet the requirement (Jesus met it for us)
(3) Everyone gets in the same way (Being in a relationship with God - in this life and the next - depends on faith in Christ; not anything you can do)
Hope this clarifies things. Keep asking questions, friend. We'll try our best to help you find answers you're seeking. Also, come to our youth service and learn more about God.
[Answered by Pastor HM]