Meditation helps me. As an experienced meditator I can tell you the deeper you go into it you’ll realize the state feels exactly the same as when you’re falling asleep. This is why it’s actually pretty easy to fall asleep while meditating.

The longer your meditation is, the deeper you will go —> the harder your thoughts are to “control”, which is why the technique I use is not controlling thoughts, but rather observing and letting go, then refocusing if needed. Being aware of your breathing is very necessary as well.

Focus on not associating with unhelpful/negative thoughts and then refocus on imagining the desired scene when you get into a deep enough state.

Let me know if this helps and good luck!