Well, Yes there is a better way to edit simple photo than Gimp.I see you face problem to figure out with Gimp, Yes its very hard to use Gimp for edit any image but there Quality is good enough.Well i can suggest you a way to edit simple photo best.I will suggest you to use “Lunapic”.From my mind this is one of best photo editing online way in nowa-days and also its easy to use.Here is some benefit for this….
>Its basically designed for photography editing personals as it provides the ease of use.
>You don’t have to download it,All you need is upload the image and select best effect for your image.
>One of the best excellent tool that possesses a lot of potential.
>It is bug free and hasn’t any limitation.
>The last one is it’s totally free.
Well there have some disadvantage too.
>The ads, It is one of the terryfing things in online now.
>editor lacks intuitive and insightful layering system.
Well here is more tips for Lunapic… https://itday.com/photo-editing/lunapic-review-alternative-choices-photo-editing-software/