Your Spanish learning program should fit in your ability to learn
. If you are having problems with the Spanish verb conjugation, have that particular lesson over and over until you fully understand it. Nothing can go wrong if you would exert more effort and time to overcome the difficulties you are having with your lessons. It is also useful to have tools that can help you remember your lessons like writing the lesson down and review them once in a while. Reading Spanish books can also help be familiar with the different words in Spanish; you may also look for the meaning of the words that you have encountered. There are lots of ways to learn especially if you are willing to do so. Exert effort and have the time to learn something from your lessons.