Once you feel you have mastered the concepts and skills in the example, try working the assigned homework again. Seek help from other students. Form study groups. Most physics knowledge is taught in an oral tradition where older experienced students pass on their knowledge to younger novices in the form of homework help. After you have finally worked out a difficult problem, throw your solution away and do it again.
Repetition is the key to learning.
Don't give up. Most successful students attribute hard work and persistence as the key ingredients of their success. Spring Break March 12 - 18 All campus day April 27.