Which method is an effective way to minimize proactive and retroactive interference? decreasing sleep time making the material meaningful scheduling back-to-back study times for topics that are similar studying before sleeping?

The most effective method that an individual should do in order to minimize of having to experience proactive and retroactive interference is by having to schedule a back to back study time for topics in order for the individual to prevent him or herself of forgetting things in the past such as experiencing the interference above.