Sometimes I can hear this voice in my head saying negative things. When I'm around people I often get anxious and scared. If I'm in a room that's full of people and loud I start to cry and breakdown. Are there some things I can do so I do not react like this?

I have felt this way before. I sometimes do a grounding exercise to myself, like gently pinching my inner thigh not to cause pain or injury but as a reminder that I am okay. Sometimes I take a cleansing breath through my nose and let it out through my mouth with my tongue on the top of my mouth. I sometimes think of a peaceful place I love, like a fresh snow-covered yard or a beach with bluish-green water. Sometimes I think of something positive like a quote or mantra and I repeat it in my head a few times to keep myself calm. When my head says negative things, I will sometimes make it a game to challenge the thoughts with happy and positive thoughts.

I sympathize with your situation. It must not be easy when this happens to you. The best advice I can give you is to think of that one person in the whole wide word that you love because that person loves you back, accepts you just as you are, and always has your back. For some people, this person is God, for others it is a family member or a pet. Regardless of who or what it is, think of that person being beside you when this happens; think of that person fighting the negative talk on your behalf, and comforting you when you feel anxious. There is nothing to fear when you know you are not alone and that someone else loves you and has your back. Focus on that someone or something when these episodes happen again. Know that you are not alone in facing your fears. Take care.