My new supervisor wanted to collaborate with my ex-supervisor who bullied and destroyed me I was in a lab since two years ago for a PhD and I wasnot lucky since I had faced bullying and all the bad things you could imagine. I left one year and for the bad luck I thought that this would be end, however, I got hired for a new PhD and for irony that wanted to use a software where I had learned since I was there and my ex-supervisor is also well known in our field.

I had another PhD student who literally makes things out of the thin air, he make up things and since I know the topic very well, I know he is a sketchy understanding, but my new supervisor is not really expert in that point in particular. This student brought the idea of collaborating with the guy and tried to make contact with my ex-supervisor.

I felt I am destroyed.I told my new supervisor that the relationship of my ex-supervisor wasnot got to me, and he was quite okay with that, however, after two weeks this PhD student persist on including my ex-supervisor although I am aware of the topic,  this student ignore all what I said for suggestions and is so welcomed by my new supervisor which baffles me. Next week they will have a meeting and this so much pressure to me.

I dont know what to do again! I felt the most unluckiest person on this planet, moreover I am a girl from underrepresented community. 

I think this the last shot, my academic aspiration is doomed, I am tired. I dont know what I can do again?
What will happen depends a lot (too much) on the good will of your new supervisor. But you have to avoid getting trapped again even if you aren't in a good will situation. 

You will need to insist to your new supervisor that you cannot work with the old one based on past interactions that you found destructive. Also inform the supervisor that you find the actions and attitudes of the other student to be very unhelpful and that pressuring you isn't going to resolve anything. 

Sadly, I can't predict that the outcome will be positive, since I don't know anyone involved here. But, you might also have to consider that you need to find a new situation altogether if the new supervisor turns out to be unsupportive. 

But don't make a point of discussing your view of the competence of the other student. That is for others to judge and raising it won't help your case. 

You need positive supervisor support and you need to not have to deal with social pressure. The pressure of research should be plenty.