Image post processing

I have reached a point with my photography where I have been clicking lots of pictures but not bothering to organise them. My pc running at a snail’s pace, so I don’t like even opening Photoshop also because I don’t know how to use Photoshop well enough. I borrowed few Photoshop books from the Albury library. The first one was not interesting at all and the other one was more of a Photoshop manual. After my soccer season is over, I am planning to go do a Photoshop workshop at TAFE.On 28th I set base at the monument hill from 6:30pm till around 10pm, clicking pictures of the lunar eclipse. I have been trying to merge all the pictures and show it as one single picture showing a series of pictures with the earth’s shadow slowly covering the moon. I have been unsuccessful so far L