what you take with you really depends on your personal preference. i'm trying to keep it minimal cuz my fiance has lived alone for years and i dont want him to feel overwhelmed with all the little girly stuff that can pile up and make a brand new apartment look like a huge mess. this is why, i'm only taking a few of my really nice clothes n shoes but really trying to keep makeup, accessories, etc to a small organize-able amount.
its a great idea to take a little stuff with you over the next few months and set it up as you go. cuz unpacking your entire life right after the wedding will be soo much work and exhausting.
since you aren't getting married really soon i'd recommend taking things that you definitely won't need until after marriage. maybe winter coats, sweaters, n boots? also memorabilia like high school year books n albums etc that you would definitely want to keep but still you know you won't absolutely need to see them within the next few months.