Maybe you can try a version of meditation that, rather than trying to clear your mind or relax yourself, you focus on a specific thought, word, phrase, affirmation, whatever. Let it be something that means something to you and that you feel is applicable and appropriate for you and your present situation. You could treat it like a mantra that you just repeat or read over and over. Or that you just sit and ponder it and let your mind just focus on what it sounds like, feels like to you, means to you, etc. Some traditions might call it a mantra, or breath prayer, or __ meditation, but the concept is the same.

So, for example, I choose to meditate on the word love. I might just sit in stillness and let the word repeat in my mind over and over, or I might whisper it to myself over and over, letting my mind focus on it, and not trying to control what comes to it. Eventually I might just have a lot of images of people I love, or things I love, or what I hope for about love, or thoughts about loving myself . . . And anytime my mind wanders to something unrelated, I bring myself back to focus on the word itself until my mind is back on track pondering and thinking on the concept or related imagery or memories or whatever.