I believe the most important point in tennis is the 15-30 point. Whether you are serving or returning serve, what happens then is critical.
Who wins that determines whether it is at a non-threatening 30-30 (usually the serverâ€™s advantage at that point) or high pressure 14-40 game.
As the server, you want to take a little off your first serve to be sure to get it in â€“ and to a good spot; and then play the point as if it really mattered.
As the returner, you MUST get the return of serve back in play: you should not over-hit or over-play it; but with controlled aggression, get the ball back over the net and in play. Then, like the server, play the point like it really counts. If you win it, you now have double break point!