Many times players are taught the importance of serve and volley, especially in doubles. However, many times the student will literally serve and race at all cost to contact the next shot as a volley, (hitting it before it bounces). As a youth, you might be able to do this; however, as you get older it will become futile.
To correct this, serve and move into the mid-court with the goal of making a mid-court shot. Of course, this shot could be a volley, but many times it will be a half-volley, an overhead, a bounce kill-shot or a bounce smash, etc.
Do not place the emphasis on racing in to hit a volley. Instead, place the emphasis on accelerating until just before your opponent contacts the ball. At this point, quit running, slow down or down-shift. Now, accept the next mid-court a one of a myriad of shots, (half-volley, kill-shot, overhead, bounce smash, etc.). Typically, the mid-court shot will not outright win the point. Make the mid-court shot to transition closer to the net to gain a better, offensive position to win the point.
You may often have the attitude when hitting your second serve that you are trying to start the point and not trying to serve an ace; this is the same attitude you should have when making a mid-court shot.
Remember, attack, but the first shot coming in is not always going to be an easy volley.
Good luck on the courts!