Translation of propagate in German

As I have already mentioned in my last email, it is a breakthrough, I have never been so successful. I have visited several Spanish schools and would like to discuss that by telephone with you.
In order to quickly become successful, one would have to change certain points, at least in my opinion: After 5 months of learning, I have still not found the grammar practice on which I should concentrate.
I hope that we can teach each other a few things. I work as a nurse here in Boston, and it gives me a lot of joy and comfort because I like to help other people. It is a job that takes a lot of effort.