hola!
I don’t know if there is any secret recipe to create mems, but I think that there are two points to take into account:
You should connect the new word to something that your brain already knows (a word, a picture, an event…
You should be able to remember the word quickly, which is easier if the mem is funny “or striking” for example.
Personally, I never thought that I would enjoy creating mems.
Here is the last “crazy” mem I created:
うしとら (ushitora) 艮: stopping
the cow (ushi) stopped the tiger (tora)! how brave!
or
in the stopping, the cow (ushi) stared at the tiger (tora). The hour of revenge is coming! she said.
or
the cow (ushi) and the bird (tori) stopped to take a meal together; but they didn’t invite me! (sigh)
For spanish, I often look for the word’s etymology, but sometimes when it is not that helpful, I connect it with other languages like French, sometimes Arabic or English.
For the word “lograr” I created a mem in French: Quand on réussit on reçoit des éloges
I find that strong images help reinforce a word or phrase.
In English, the Spanish word ‘lograr’ looks and sounds like ‘logger’, so I would think of a logger achieving or reaching for success in a contest and find an image to show it: