Hi again dreamscaper22. Meditation and mindfulness could help to slow down racing thoughts, and based on my understanding, there could well be significant overlaps with practising to become more aware in lucidity pursuits.
As for the gaming, you might be interested in the work of Jayne Gackenbach (who I have met), who has published a number of academic papers on lucidity and gamers, e.g., https://psycnet.apa.org/doi/10.1037/1053-0797.16.2.96. It seems that gamers might stand a greater chance of achieving lucid dreams, for a range of possible cognitive reasons. But of course, it wouldn't be healthy to play games too much, so exercising some self-control would be highly encouraged here (might also be helpful for lucidity purposes).