I am going to try a horse to buy for the first time ever. What is expected of me? What should I make sure to do/check? I know if I like the horse that a vet check is a must, I just am nervous about being "critiqued" as I ride, since I am still a beginner and don't know that much! Is one (or two)ride really enough to know if you like something? I am going to bring my own saddle. Do I bring a girth too? I would think that the sizes are too different...saddle pad? Help please!