I recently upgraded my computer skills.
I took a course with a local training facility (http://www.go-train.co.uk/)
Finally, I managed to get this certificate.
I learned a lot, and enjoyed it.
The vast majority of the learning was delivered online.
We are very fortunate in this country, that our Government actually pays for this training. I have had experience with microsoft programmes. However, this course get me a much better overview.
You can buy online courses for about £125.
They are well thought out. Some microsoft tasks are similar in all programmes... Copy, Delete etc and this is repeated in all modules.
I got a little bored at one point and mixed the course with some other learning material.
The video's by Oliver Leamy, were in my opinion very good. https://www.youtube.com/channel/UCq08ptDrhwYwVoDeTDj9PBA
Plus, for a small fee (£5 per course Excel, Powerpoint, Word) a company called screenlesson, give a good selection of mock exams with videos that show you best practice answer for each question.
This gentleman, Sali Kaceli gives a good overview.https://www.youtube.com/channel/UCk1D1aQhYKvsIYqHLUNgaqA
I can't claim to be a microsoft genius, but I did learn a lot and enjoyed.