Develop your listening skills naturally and bridge the phonetics barriers. Whether you are in an immersion Spanish program or not, you have many possibilities to expose yourself to Spanish sounds, let´s see how:
Immersion:
Listen to people talking on simple situations. Try to get the global ideas from any discussion you hear. The easier, the better. While shopping, on the bus, in church... any cultural situation that you can understand will be a great source of words and useful phrases.
At home:
Get some good music tracks, try to find those where Spanish is clear, so you can repeat the lyrics. Since memorizing by music is much easier, this will remain in your memory for a long time. Find some tv interesting programs and podcast of your interest. You do not need to understand every word; thus you get familiar with sounds and learn phonetics in a natural way.