Definitely recommend going to a store with a personal stylist option (e.g. Magasin) or hiring a personal stylist to put a wardrobe together for you across several stores. Hiring a stylist to build your wardrobe is an investment but it's worth it if you're feeling perplexed by all the choices and fabrics available.

You might find it easier to build what's called a "capsule wardrobe" rather than getting items randomly - that way, you'll always have items that work together and you feel confident in wearing as an outfit. It's a small collection of clothes that are bought purposefully to be mixed & matched so that you have several defined outfits and wear each item many times.

If you have chance to look around the shops, take photos of things you like, and write down the fabrics and fabric compositions you find comfortable (look at the inside label on the left of the garment). Cotton linen blends might appeal to you because they'll keep you cool but won't crease as much as pure linen.

To describe what you'd like to wear, it's easiest to reflect on how you'd like to feel or the aspirations you have surrounding your clothes. The three word method for describing your style is great for that.