Review previous lessons frequently. Learn the concepts you missed on the exams. Spanish and English have much in common. You can understand and read more Spanish than you realize because a lot of words in English and Spanish have the same origins. Study with another person.
Language requires a sender and a receiver.
If you have problems in learning Spanish, use extra help with chat and message board. Learning should be relevant. I think learning becomes relevant, interesting and important when we have a clear idea why we are learning something. Learning is a life-long process.