This is human nature.
The only thing I think I can say to this is; embrace it.
That screw driver obviously works well, you know what to expect of it when you know that you need to use it, the same with the meter, the pliers, cutters or any other tool for that matter.
The only problem you could ever encounter with this kind of thinking is forgetting that the tool that you don't have right now might be a better one for the job, and keeping abreast of what kinds of tools that might help. You know what works, what else might work better?
There is nothing wrong with being a creature of habit, I'm sure you're more proficient with what you have and are comfortable with it than possibly some 'experts' with more 'sophisticated' tools.
You've already noticed that you're becoming a creature of habit, just never let it become a solid grind of doing the same thing over and over again, especially if it doesn't work. Your tool habits should change over time, although more slowly with increased time I would think.
I'm in my mid 30's and I'm still just warming up to what works for me even on a basic level.