Period advice (kinda long) (sorry)


So I wanna start off by saying that I’m 23 years old and I know everything there is to know about periods. I don’t need any harsh comments thinking I’m a young teenage girl who doesn’t know anything. This is probably a dumb question but I’m going to ask anyway. Has anybody ever delayed or brought on their period earlier successfully? I know there are a lot of wives tales and myths so I really don’t know if it’s possible without medication. I’m not on birth control and don’t plan to be. I’m going on a cruise July 2nd and my period is supposed to start that day. My periods are awful the first couple days with terrible cramps so I really don’t want to be miserable. This is probably a long shot but maybe somebody out there can help me out a little. Thanks