I hate listening to others trauma

Not because I don’t care but because it makes me feel sick and I feel really sad I can’t help them. If it’s sexual trauma or any form of abuse I nearly cry because it hurts me so much hearing it , I went through a lot myself and it reminds me too much of what I went through. I do appreciate people trust me with it and I feel honoured but I don’t think I’m mentally strong enough to listen to everyone’s trauma. I can’t describe how bad I feel from it , it takes so much out of me and I get it alot from people , mostly people I don’t even know. When my friends talk about their trauma I have to have an break from it so I don’t show any negative feelings in front of them , I really want to support them but it’s so hard when I get sad from it , it’s easier supporting friends though than it is strangers as I understand their triggers , At work I get it a lot and last night it was so hard , I had to leave him alone because i didn’t want to cry in front of him , I went to the bathroom and I got an bad stomach afterwards I felt that bad. I get physical and mental discomfort from listening to it. It makes me Ill. It’s so hard because one of my dream jobs is to work as an Criminal psychologist or as an lawyer and I really need to toughen up mentally because people can use it against you to their advantage but it’s something I’ve always struggled with.