Lately, my mind seems to wander off when I try to practice.
Well, that is not unusual and is basically to be expected. It doesn't have to be fully accepted though as part of the routine. We do want to develop some kind of awareness of when our mind starts to wander, so we can do something about it when it starts to happen.
Also, there is a difference between being absent minded vs. being distracted. If you are being distracted while you practice, where you are constantly unable to focus on your practice because you are actually thinking about something pretty specific and such, there may be a good reason that is happening. You may have other things that need your attention, especially if piano is not your main priority in your life ... there can be a lot to that

... but, I have found it helpful in the past to keep a piece of paper next to the piano so when I am practicing and my mind starts trying to remind me of the particular emails that I am needing to send, or the people I need to be calling back, or the other pressing matters I may have, that I just take a brief moment to write those things that I need to do, down on the piece of paper. Once I get it there, I tell myself I don't have to try to remember it now, and let my mind be clear of those responsibilities. Sometimes an entire page of things to do spills out in a fury, but then it's on the paper, and suddenly I am free to concentrate on my practice.
However, I have found that the only real way for me to truly concentrate on my piano playing in my life is when I am making it the biggest priority in my life, in my day, through and through. That has to do with how I personally function though.
Another kind of "simple solution" I have found is to slow everything down. Mega down. And focus on every little detail of what I am hearing and experiencing, with the aim of making music at this slow speed. Somehow those slow speeds tend to help my concentration be absorbed by my playing. When we are just shoving practice time into the day amongst other things that actually take more priority in our lives, it is easy to try to rush through the practice time mentally, causing poor concentration on the task at hand.