If you're having trouble with your backhand, spend half an hour with a friend hitting cross-court backhands to a target. If your second serve stinks, take a basket of balls to the court and hit a few hundred serves. Musicians practice their scales, doctors operate on hundreds of cadavers before they get to operate on a living patient and Andre Agassi hit thousands of cross-court forehands in a drilling situation before he had the confidence to hit it at Wimbeldon. Perhaps, but not as boring as playing the same mediocre tennis year after year. Don't fall into the trap of playing with the same people week after week, year after year.
Many players do and, as a result, they get stale, bored, and stuck in a level rut.
Search out some new players to practice with , some stronger, some weaker. Yes, I did say weaker. Believe it or not, you can get a great deal of practice playing with a lesser player. There's no pressure and it's an excellent opportunity to work on your consistency, control and new shots. Practice trying to hit right back to the player or better yet, play only to the players strength.