Verb conjugation of "estimar" in Spanish

In order to change something you need to have courage, even if it is the smallest thing. Actually let me refine, changing needs only courage if the current situation is not bad but not perfect either.
I was a little confused because I recognized the voice and I had booked at Luisa's guest house. She explained me that she was sharing the phone with her neighbor and her neighbor was not honest.
In order to see it you have to complete a lesson. I attached a screenshot. I did not place any rating there, so that it will not demotivate some of the users, especially the fresh beginners.