9th Grader taking 10th grade classes?

When I was in 8th grade, I was offered to take 9th grade classes and get high school credit. I took 8th grade classes in 7th as well and got credit. So, I will be skipping a grade (Technically) in my 4 core classes. Are tenth graders going to make fun of me and not talk to me because I'm younger than them? I have tenth grade honors, actually. Are the honors kids more mature? Will they exclude me from things. I am so worried about that, and homework. How much homework is there in honors (Not AP, just honors).