Hi Kendoll! It might be hard to know exactly what you want until after you've ridden a bit. These ladies have great advice but there's always some trial and error involved. A lot depends on your individual comfort levels.
If you have a 1/2 or 3/4 helmet make sure you have good eyewear with shatter-resistant lenses. I wore regular sunglasses at first & was lucky to only get a cut eyebrow when they broke. Also have a backup pair. I carry glasses with tinted lenses & also clear lenses for dim light/nighttime. A face mask of some sort (doesn't have to be fancy or expensive) is handy if it's rainy or dusty or just to take the wind off your face for awhile.
I also have a neck warmer to use when it's cool (below 60s for me).
Jackets - either textile or leather - good ones have a removable liner. Make sure you get one big enough to put layers on underneath. Also if the jacket is too snug and you add a full liner w/ sleeves the arms get really tight. That makes for bad circulation which makes your hands cold! Also the jacket will fit differently when you're seated on the bike than it does standing up. When you try it on sit on a chair and hold your hands like they're on the handlebars. "Vroom"ing sounds are optional when you do this!
Pants/chaps - I only have experience with chaps because I've never found pants that are long enough. But I think the mesh pants with knee/hip armor would be awesome! Chaps are ok. The leather is awesome at protecting your knees/legs from stuff and they provide ~some~ warmth.
Gloves - I think this area is really up to personal comfort. I know some folks who ride most of the year in half-finger gloves. If it's too cool for those then they don't ride! Then there's me with 6 pairs from half-finger all the way to super-duper heavy cold weather gloves. Make sure the gloves aren't too tight otherwise you're hands can get cold and too-tight fingers keep you from reaching the controls comfortably. If they are cold-weather gloves a big gauntlet to go well over your jacket sleeve is important for sealing out the cold air.
Boots - should have sturdy foot/ankle areas. Also should have good grippy soles. Waterproof is helpful. Socks? Whatever is comfy. I wear moisture-wicking socks bought at a local camping/backpacking store.
Ditto what ladyrider said about rain gear - because you will get wet at some point! I've heard of some el cheapo rain gear shredding in the wind so rain gear made just for motorcycle riding is important.
Hmm... hope that's not overwhelming! I guess my best advice is to buy your first gear knowing you'll probably want to change it at some point when you have a better idea of your personal likes/dislikes.