Summarize:

Split ends will make your hair look thicker and bushier, especially at the bottom. Prevent this by seeing your hair stylist at least every 6-8 weeks. They can trim off your ends so your hair looks as sleek as possible.  Split ends also lead to tangling, which can be a problem when your hair is so thick. Keep in mind that split ends can spread up your hair shaft, so it’s best to trim them early. Your stylist can use thinning shears to remove bulk from your hair without cutting the length. Talk to your stylist if you want to get rid of some of the volume and weight from your hair. They’ll be able to thin out your hair in minutes. When your stylist uses the thinning shears, it’ll look like they’re cutting off big chunks of hair. Try not to worry because they’re not really taking away your length. Layers remove some of the volume from your hair, especially at the bottom. They help your hair lay flatter and may help your hair look less thick. Ask your stylist to give you long or short layers, depending on how long you wear your hair. Layers can work with any hair length. If your hair is short, your stylist may leave it longer in the front or on the top. If your hair is long, they may cut 3 different layers. While chin-length or above-the-shoulder styles can be super cute, thick hair often poofs out when it’s a shorter length. Instead, leave your hair at least shoulder-length if you don’t crop it super short. Otherwise, it’ll look a lot thicker and poofier. If you prefer short hair, ask your barber or hair stylist for a very short cut. This will prevent your style from having too much volume and make it easier to manage.  For instance, you might try a buzz cut or a textured crop. You might also ask your stylist to shave the lower part of your head so you can keep the top part long. This is a great edgy style that won’t look too thick since most of your hair is gone. An undercut is when your stylist shaves a lower section of your hair just above the nape of your neck. This removes a lot of your hair so it’s less bulky and heavy. Ask your stylist if an undercut will work for your hairstyle. Keep in mind that your undercut will be visible when you put up your hair. This is great if you like the look of your undercut but might not work for you if you only want an undercut for practical purposes.
Get your hair trimmed every 6-8 weeks to avoid split ends. Ask your hairstylist to thin your hair if it feels unmanageable. Choose a layered hairstyle to thin out your hair and create movement. Keep some of your length so your hair lays down if you like it longer. Get a very short style if you wear your hair short. Try an undercut if you feel like your hair's too heavy.