Using tampons

So next month I am leaving to go to Europe for two months and I am supposed to be on my period for the first week and the day before I leave, so I definitely need to start wearing tampons before I go so when I'm there it is no big deal for my period. But I'm really nervous to try tampons, I hope to this week cause I just started my period yesterday, does anyone have any advice? I'm really nervous, but I'm not a virgin so that eases a little of the nervousness but I'm still kinda scared...