To address your title question, we only see the suface of anyone’s life. We cannot know how much suffering others have. This is why Jesus commanded us to “take your cross and follow” him. Each of us has his own cross to bear. For some it is being physically different. I can identify with this because I am a very small person–so small I could be a member of the Little People of America. Petite doesn’t really cover it.

I have been teased all my life, and even now, when I’m in my 60’s some people can’t resist commenting on my lack of height–as if it’s news to me.
Still, I can only imagine how hard life can be for those even smaller than I. Remembering that there are others who are suffering deprivations, painful condiitions, dying, unloved, abused, and the list goes on, prompts me to be thankful for all I have–all that God has given me.
Don’t let others comments rule you life. Dimiss them for what they are: stupid, uncouth, thoughtless, and totally nothing to do with who you are before God and those who really matters in your life. Those who tease you will have to answer for their rude comments one day, so pray for them. We all do/say stupid things, so we ought to think of who we’ve offended or been unkind to, as well and do penance for it.
Give all your hurts to God, in Christ, who suffered far worse that name calling, although he suffered that too, for all for us, not for himself. Don’t nurse your hurts and dwell on them but give your hurt feelings to God who can make great good come out of our sufferings, turning them into blessings for us and for others.