Practice asking questions. You can take the questions from a article as a good starting point.

Ask yourself what level question you're asking - are you operating at the "can we do this" level or at a deeper level such as "should we be doing this?"?

Make a habit of asking - "should we still be doing this?" - this will give you the lever to create time to do the things you should be doing.

Be deliberate about the assumptions you've made going into a project and the untested hypotheses arising from them. If you're not planning to validate your assumptions and hypotheses your plan is wrong as learning is an outcome.

When you've made a choice about an approach - ask yourself is it a positive choice. That is to say are you moving towards something with deliberate intent? Do you know why you're doing that and not something else? Do you do so knowing what it will cost you later and are you prepared to pay that cost?

Another good litmus test is asking yourself whether you are telling people what you're doing is the right thing or are you able to show them? Ask yourself how you would show them because the rule of "show don't tell" is just as applicable for the work we're doing as it is with communication.

Having a mentor or colleague ask you these questions can be a powerful coaching experience.