How can I deal with someone that is acting like a 'diva'?

I can deal with someone who is acting like a diva by not being responsive to the behavior which is usually aimed at intimidating the other person.

From the wording of your question I feel as though we are similar and I think the same about some important people in my life. However, you have to understand that everyone reacts differently to situations and effects them to different extremities. Do your best to leave judgement behind and maybe by offering genuine support or trying to figure out why they’re acting this way you may find they calm down. Acting like a diva may be a form of subconscious attention seeking. However, at the same time if the person is being a “diva” do not let yourself be treated badly, and do not deal with toxicity.

Respect that in them. I know- it is real hard to do this. But maybe they are very confident in their self esteem, they love themselves a whole lot!

Talk to them, or just ignore them. Don't make their problems yours or you'll feel bad about yourself

That depends. If you don't like the person or the person is mean to you just try to be nice and stay away from that person and from drama. I'm sorry I can't give better advice

If you think that she's not a "diva" just move on and go away. I mean, if you don't need this kind of person in your life just go away from her/him, if you need her just accept her/him.

Open up to them. Get close to them. Be strong and act cold too but be interesting. Be funny so that you can break that person's wall down.

Well, i think the best what you can do is that you don't pay attention for this person. Of course it depends on who is she/he, because if that person is your friend/relative etc., it's a bit difficult for you to avoid him/her. If that's the situation, you should talk to that person to find out why she/he acting like that and how you two can solve this situation. I'm quite sure you will figure out something. Of course the 'diva' people are annoying, but behind this behave there's something. Maybe a family problem or something else. Talk, talk, talk. That's the best way to find out!

We'll , to be honest I'll try my best to help the person because at the end of the day we know at some cases it may be as a facade they wear to not get hurt or used again . As they say you can't really judge a book as it's cover so even if I have to face criticism or it gets to a point where the other person is just stubborn or aggnorant he/she may only know it gets irritating but I'll try my best to be patient and show and guide the person away from darkness towards the light. At the end of the day I can't make everyone happy but I'll be glad that I atleast did try. For example there are some cases where people don't really need help but message you to see how things work or how you deal with a problem but it's not your fault . No matter what really the situation is I know I did my best and even if that one word or sentence changes the other person's life for the better is way more than enough for me because I know how it feels name it from being in an abusive family to bullying , axienty to anorexia I just want to help people so they don't make mistakes like me

It might be helpful to realize that if someone is acting that way, they are probably doing it out of some intense form of suffering. If you can see their actions as their suffering, you might be able to deal with them in a way that they don't expect, and a way that makes it easier for you. Acting out is often a way to directly see why someone is doing something, and if you can connect it to insecurity or fear or anxiety within an individual, you can then address that insecurity or fear or anxiety with the individual directly, which often counteracts how they are acting. At the very least, it may help you to be more compassionate with how they are around you.