Hola!
I would like to help you improve your Spanish skills!
I have a BA in Languages Interpretation from the Instituto Superior de Interpretes y Traductores in Mexico City. I also taught Translation and Interpretation Studies in this same Institute and at Universidad Tecnologica Americana, located in Mexico City.
Apart from English, I speak Portuguese, Italian, and French, so I know how important it is to practice every language and develop new skills to master it.
I also taught English in Mexico City at MasterCard, Kodak, and Serfin Bank while in college, so I remember how to write out the lesson plans for every class.
I would suggest a Spanish textbook to follow during the class, plus some extra reading (novels are great for acquiring and understanding new vocabulary). Podcasts are very helpful, as well. I could recommend a couple to see how much you understand on your own, and we can discuss them during class afterwards. There are many useful activities for language learning! I do them on my own for English and the rest of my languages.
Regarding the hours per week, I strongly recommend three, so that you can work on your own the rest of the week.
Let me know if you would like me to help out.
Best,
Ana Margarita