One meditation you might find fun and challenging is this:
Attempt to remain an aware observer of your thoughts.
Attempt as a practice to notice each thought as it arises in your mind. Watch the thought -- as an observer of the thought. And at the same time, watch you watching the thought.
Acknowledge each new thought as it arises. Say "hi" to it. Ask it what it what it would like for you to get from it. And once you sense that it has revealed that, thank it. And then you can either allow yourself to consider what it has revealed, or gently release/dismiss the thought and wait for the next to capture your attention, or simply allow the thought to run its course and become aware again, as the observer, when a new thought has captured your attention.
Again, greet the new thought, observe yourself observing the thought, etc. On and on.
Your highly active mind might find this meditation's active combination of mindful awareness with detachment and interactive dialogue and mystical awareness a fun and intriguing game that allows your mind to be the way your mind is.
Don't try too hard. That is probably the biggest mistake people make who believe that they are having difficulty meditating.
While researching/writing a book called "Prayer, Faith and Healing" in the mid-90s, I had an opportunity to sit in a small group and interact with the singer/songwriter Donovan, (the Donovan who was with the Maharishi Mahesh Yogi in India at the same time the Beatles and Mia Farrow were there in the mid-60s). He said he wrote the song, "First There is a Mountain," as a sutra based on a meditation lesson that Maharishi taught.
The Maharishi taught, he said, that one needs never worry that their mind has drifted from their intent while meditating so long as they allow the awareness that this has happened to be part of the meditation and to use that it to gently guide themselves back to an intended focus. He said that Maharishi said that even the most advanced, masterful meditators experience this drift. And thus Donovan's song, describing it and the process: "First there is a mountain, then there is no mountain, then there is."
I see that you have an abundance of advice offered here from a variety of people. Please let us know how it goes and what seems to work for you.