create a function to store the mouse clicks and redraw from the mouse clicks in turtle.

point = []
def add(x,y):
  point.append([x,y])
  turtle.clear()
  turtle.penup()
  turtle.goto(x, y)
  turtle.pendown()
  turtle.dot(3, "red")
  
def draw():
  for i in point:
    x = i[0]
    y = i[1]
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
    turtle.dot(3, "red")
    
turtle.onscreenclick(add, btn = 1)
turtle.onkey(draw, "space")