Choose the right frequency and then meditate to either the bare tone or music that contains the frequency, like an app called Frequency in the Apple App store. You can play it while you sleep, too. State your intentions mentally, first, and also in your head or out loud while it's playing.
Also, if you pray, play the frequencies. You have to do it a lot.
You can create tones by themselves, but I found an app for iOs called Frequencies that will play music containing these and other frequencies. I've found it really helpful to do them while I'm in bed. You can create a playlist with their music. There are literally hundreds. They also have some pure tones if you need that. These are in addition to the ones I already posted.
Manifestation frequencies: 432Hz, 528Hz, and others, depending on your intent. Also, sort of demand the timeline. I decided I am NOT going to live in a timeline where nuclear war happens. I refuse. I think about it often. I know it sounds silly, but it is working so far. Basically, what I am say, is study frequencies.