What type of exercises are you doing? Post your rutine, just a sample
What type of equipment you have access to?
How much time do you have availiable?
What are your goals? What specific and time, pick a date to lose the 20 pounds. Please at least 5 weeks or more. Depending on how heavy you are.
What is your training level or experience?
Answer these and I can help you
Rick_CSCS