I'm Chilean and lived in the States for two years during my childhood. Having that experience taught me that the best way to learn a new language is not inside a classroom, repeating words and grammar formulas over and over again. I believe that immersion learning is the best way to go.
Because of that, my offer would be.
1. A month of lessons, where we would meet in different places so that you can speak to natives as you learn. As an example, I would have you order a coffee, describe something you see, ask for directions, etc.
2. During this month of lessons, we would meet for 3 hours every workday (Mon - Fri).
3. Aside from those 3 hours, you will be able to message me and ask me questions, as I know that things come up as one starts to dive into the real world.
4. During the lessons, I will make sure to teach you both proper Spanish (the one that will work in every other country aside from Chile) and Chilenish, as you will have a harder time understanding the latter if you don't ease into it.
5. As part of the immersion lesson, I can include experiences such as bbqs with friends or family that will give you a chance to interact with other locals and hold down a conversation.
6. After the month is over you will be able to message me or call me with questions for 2 extra months at no extra charge.