Dont Forget

I found it written to say this תפילה before starting to learn

to prevent from forgetting.

There are three פסוקים to be said 3 times ישר והפוך (forwards & backward)

When saying the Pasuk of בחקתיך אשתעשע* backward, it might חס ושלום

translate like this,  " דברך your words- אשכח I shall forget- לא אשתעשע 

I shall not preoccupy myself - בחקתיך in your statutes."

This wouldn't sound like a תפילה not to forget. 

It is unknown who is the one who found it written and where did he find it.

*Tehillim 119