Creating the right setting for sex is one of the most important things to get a woman. Even the most liberated girl can be distracted if your brother, friend or grandmother is sleeping in the next room. The same is with your socks scattered throughout the room.
The first thing that you (and your partner) will have to understand and learn to solve sex problems is that you will not be able to relax without help. You both need to work together on this, and, as a rule, a man has even a greater role in this than women.