In most cases the club you select will have a big impact on the success of your shot. There is not always a "right" or "wrong" choice, but can be highly dependent on what you are most comfortable with.
For example, some golfers prefer to chip with a lower-lofted club like a 7-iron or even a hybrid, while others like the feel of a wedge.
The only way to figure out what your preferences are is through trial and error, and it often works out that what you practice with most is the one you prefer.
The same is true for full swings. Most experienced golfers have a Go-To Club. This is the one they have the most success with for a variety of different shot types and lengths.
That's why it's so important to practice different types of shots with a variety of clubs on the range. If you find yourself focusing too much on Driver, remind yourself that it's one of the least used clubs in your bag during a typical round of golf.
A good rule of thumb is the higher the loft, the more you'll tend to use it during your round. Adjust your practice routine accordingly to lower your scores.