Futurelearn are offering a range of free online short courses starting this month and next
https://www.futurelearn.com/courses
These online courses cover a variety of diverse subjects and typically have a course layout with content that needs covered each week. The courses would typically be between 6 – 8 weeks to complete and come with help and assistance – all for free !! You can purchase a certificate of completion if you so desire.
I’ve taken one or two of these in the past and have always found the quality to be good and revision tests to check that you have understood the material.
So why not take Futurelearn for a spin and learn something new.