Does God talk to us by sending us dreams that gives us life lessons?

I was wondering this because, one of the days of summer vacation after I graduated grade 10 and now I’m in grade 11. I went me, my Christian grandmother, Christian mother and my Christian sister with another Christian family to a mountain in Romania and we stayed like for 3 days I suppose or 1 week there and we had a great time there, I played with a Christian girl in a friendly way and we also had a nice conversation, we used our imaginations and used to talk about it and many nice things we had done there. We also made funny jokes in car while driving. And there, I complained to my mother saying:

“Mom, why are there Aids and Ebola? Man, I wished I haven’t had the problem with my backbone, we are an advanced species, we suppose to destroy these kinds of bad diseases in such that it will remain old fashion forever and so that in million, zillions of years in future the people will know Aids and Ebola as history, just like Dinosaurs disappeared the same way to be, why we can’t do that? Because, I don’t like these diseases especially Siamese because, eeh, horror. Is there something that causes a person to have Siamese? So that we may destroy that disease before the baby is born so that the baby can be healthy.” And my mother told me this “you should be glad that you have this minor problem, others have much worse and leave the rest alone and let things come naturally”

And then I had a dream that me and my best Christian friend went to a place on a night, then we saw a creepy man with no eyes and his face was straight, then we got scared and run away to our homes and then I told to my parents what I saw and they told me “you should be grateful of your the minor problems with your backbone, others are much worse than you and you should thank God for giving you thing zillions of times”

Then, I understood from this dream that it was a lesson that should not be crying anymore about my situation. And I was thinking that it was God who told me this, right?

My question is: Do we get sometimes dreams that are life lessons from God?

Because, according to what God Said:

“And it is not for any human being that God should speak to him except by revelation or from behind a partition or that He sends a messenger to reveal, by His permission, what He wills. Indeed, He is Most High and Wise. [3:79]

I was thinking that He does not speak to a normal human being directly like He did with Moses, like He talked to Moses on bushes if I’m not mistaken, it is as what I think of?

Second question is: Does God talk to us sometimes in our dreams by making for us clear dreams that tells us something?

Third question: Does God tell us sometimes by sending a dream to us, telling if He is agreed with our wish or not?

Forth question: Is there a surah, Ulama or Du’a that... when you wish for something and you’re scared that He might not accept it then to recite this and you’ll get the message from God in your dream telling you that He is agreed or not. So, is there any surah for this?

Please correct me if I have done a mistake