I doubt if a Tango can be learned without professional help.
If the setup between the partners is not correct then nothing will be right. At the begining and all the way through the feet have a certain position, they are off set. For the man the LF is ahead of the RF . The RF is level with the instep. The palm of the hand should be on the ladies spine. Stand facing diagnal to the wall with all of the above . Keep the feet where they are and turn the body anti- clockwise a few degrees. The first walk will have to be in CBMP. With that stance it connot be anywhere else. The second Walk there will be no CBMP. The will be CBMP on the first step of the Link.
Where your very first step is taken predetermines where the second step will land. From there it is lessons all the way
There is a tendency at first after the Link to lean slightly in the direction of the next step. If we hang a plumb bob from the right shoulder it should go straight to the ground. Chin up, look arrogant. Left heel off the floor. This is where teaching is esential with the conection of the knees, for want of a better word. If you do lean. From the other end of the hall, you will look as though you are diving into the floor. Keep that chin up, and get some instructions. Tango music. I like that one from the movie Chigago.
To this I will need to add .This is the International Style. Other Tango's have their own charcteristics