Any thought during the meditation will bring you to other world which you do not want to experience during the practice. Regardless you deny it, the thought comes back right away. You can not get rid of it. So, what you have to do is just "accept" it. Then bring your awareness to your own mantra to repeat again to push it away gently.
Do not struggle to bring yourself to meditate but just accept it as you do for yourself.
Make a space inside of you to accept outcomes.
Just like accepting yourself as you are. Accept others as they are.
The thoughts are the words, the sentences which come into your mind. The thoughts are also the images, the colors, the sound, the music, the melody, the sensations of your body. Anything other than the stillness. But you may enjoy them too. If so, just let them come and let them go by repeating your mantra gently and effortlessly. Then you may fall into the gap, the stillness.