My effectiveness and ability to get things done derives (partly) from being completely in touch with how I'm feeling at any given moment. This doesn't mean I always understand why, but I'm at least asking the questions to better understand why I'm feeling a certain way.
I don't think people do this enough.
I know it's not easy, but it's vital to self-health. And you can't really empathize or be more in tune with others feelings if you're not in tune with your own. This means thinking about the emotions you're feeling, understanding your energy levels, and, in a way, being there for yourself. Occasionally ask yourself "What's up?"; or just think more deeply about how you're feeling.
"I don't know." is a fine response. At least you're asking the questions. And that's the start.
Journaling is a fantastic way to try the process. The act of writing and exploring one's subconscious leads to a whole new avenue of mental thought and recognition. I do it every day.
You don't need to follow any format to start journaling. Pick a time each day, sit down, and just write everything in your head. You will find yourself exploring and asking questions that may have laid dormant before that moment it's called into question. That's great! Keep doing it.
There are no rules to journaling.
You can do it for as much or as little as you want. What matters is going through the exercise. We, as humans, are quick to acknowledge the necessity of exercising our bodies, but that same acknowledgement is infrequently proffered for mental exercise. Journaling, writing, and thinking are mental exercises that you should do to keep your mind sharp.
It's also great for recalling information later on.
I love being able to look back in my journal to uncover how I was thinking, what was going on, and how I was wrestling with it. This is great.
Now go write. And then keep writing.