You have to take lessons!
There is no substitute for learning the fundamentals well. Every dancer who wants to learn the Argentine tango well owes it to themselves and their partners to take *at least one full beginning series* before going out to dance or moving on to Beginning-Intermediate classes. If dancers rush ahead, they find they know a bunch of moves but it doesn’t feel like dancing. Learning Argentine tango is exactly like learning a language. Until you know how to use basic words you can’t have an enjoyable conversation.