Learning is fun when you have the time! 

• Go to back to school
• Take Online courses
• Adult Learning Resources https://www.broadbandsearch.net/blog/adult-online-learning-resources 
• Try https://www.udemy.com
• And http://www.openculture.com/freeonlinecourses
• And https://curious.com
• Your local community college adult education
• Be a student
• Be a guest lecturer
• Learn a new language
• Learn to play a musical instrument
• Take art classes, cooking classes, knitting classes…
• Read, read, and read more
• Make films
• About you, your family, your work