Strategy is a tricky thing.
Being strategic requires planning. It requires discipline. It requires flexibility. It requires us to ask questions before getting started and, in some cases, saying no. (audible gasp)
No matter your area of focus or expertise, we are often pulled in the direction of what we can do - whether to prove that we're being responsive, to show that it can be done or because it's satisfying to take something on and accomplish it. Problem is, just because we can do something doesn't necessarily mean that we should do it.
"Can" is a slippery slope. Given the right mix of time and energy, just about anything can be done. Heck, last year I saw a squirrel water ski. (true story)
"Should" requires a few important things. You need to understand goals and purpose. You need a way to know how much time and effort should go into the project so that you don't over- or under-do it. Should has a clear purpose and outcome.
It's a simple swapping of words, but give it a try. Rather than making a decision based on whether something can be done, think about whether it should be done. Just having the conversation is a step in the direction of strategy.