Movement through 3 waypoints with event tick

Hi Everyone!
I have some troubles with movement by curve.
I have .csv file with number of position.
Each position is a cootdinate in a table, which i build in blueprint.
When i try to move my mesh from position A to position B (tryed Lerp and timeline, V interp to) it goes directly, but I need to move it by curve.
I tryed to put timeline with lerp coordinate from A to C (point between A and B) and then from C to B, but it doesnt fit with position B correctly(
Does anyone knows how to do it?

Can you show the code that does the movement?