Hello baker in training

I think I can conclude that I am not a good baker.
Maybe I just need more practice before I make a final conclusion. Maybe...?

So I tried to make oatmeal cookies with flour this time just to see how it differs from my usual oatmeal cookies (which are usually soggy). I googled a recipe for chewy oatmeal and modify the ingredients as usual because I find a lot of recipe ask for too much sugar and butter.

Modification: 2 sticks of butter less - replaced with canola oil and 2 cups less of brown sugar.

Our blender might be old- but it still works well!!!

I should have know just by looking at the batter that the cookie might not turn out well. Doesn't it look too floury?

I don't know why it was so crumbly but I am going to venture a guess: too much flour and not enough gluey ingredients such as eggs or liquid? In the end- it came to be like a granola except its very crumbly.

How it looks like when it first came out of the oven.

I learned that you need to let the cookie cool completely before transferring the cookie to a plate; otherwise it breaks apart.