Hi to all the newbies! Welcome, and I am so glad the horse forum has a place for questions where people can feel comfy asking whatever. I am not really new, started riding at 7 years old and have ridden and owned pretty consistently my whole life, and am now 39 (egads). There have been a couple of years here and there where I took a break from riding due to personal issues or finance, but I have pretty much always had a horse (even retired pasture pets count).
I have also cared for my horses on my own most of my life, but the past few years decided to go with a full care stable and am having a blast meeting so many new people and not having to do so much work. I am meeting a few newbies there too.
There is *always* something new to learn about horses. They are the ultimate humblers. Just when you think you have them figured out, they will pull something new, behaviorally, or health wise, and you will find youself wondering all over again. So never be afriad to ask questions, and don't forget you will get varying opinions on stuff, but there will usually be some similar general themes running through threads. That is what I would really pay attention to.