If you are serious about learning how to ride, we recommend first to spend a few days in a local stable near you that can give you a full immersion class with small groups of students or with a private if you can afford it.
To grow from beginners on horse to incredibly experienced riders in a discipline you need to find a good teacher with who you can spend a maximum time in trail, barn, stable and ring learning horse riding and also some basic horsemanship. Spending a 4 days weekend at the stable is the best way to get a quick start equine training and measure the effort it takes to spend hours on horses and all the daily care that it take before buying or leasing a horse..
Find yourself a stable that offers small group class of a few students max so the trainer as a better focus on each students. Each riders have different need and or fear of riding to be manage. First you must learn climbing hills, sliding down hills, crossing rocky creeks, going thru deep mud and water at various level of difficulty to cover all relief you can meet in trail riding or any equine discipline you may want to master.
At beginning you must take break to rest between classes, horseback riding is a very exhausting sport at beginning that require a good physical condition to insure comfort for the rider and the horse so take it easy at beginning and don t forget to rest your legs if you take classes of 2 hours long or more.
Learning in arena or ring is not the only way of learning horse riding, it is important to experience trail riding as a beginner and learn in open spaces with natural level of difficulties rather a flat surface in ring.