6 sentences. Can you review my writing explaining errors. Thanks

Today I am going to cook lentil salad. It is a fast now and we can't eat products taken from animals such as milk, eggs, butter and so on. Since I am breastfeeding I can't fast but anyway once a week I am cooking fast meals without animal products once a week anyway.
Lentil salad is very easy to cook and there are very few ingredients- lentil, carrots, onions and some oil.
On Sunday we are going to visit my in-laws. My mother I'm mother-in-law is s a great baker and always bakes fluffy and don't cakes which melt in a your mouth like ice cream.

Can anyone correct my presentation script please? "Students dancing in a supermarket"

I would like someone to correct my English presentation script.
The topic is a news story.  The news is about a student who sang and danced in a supermarket. They shared it on the internet and people think that what they did was wrong.
Here is my script below.


Okay, before I watched their video, I thought that they were so good at dancing that they decided to perform in public.
However, it was something different.
As A(A is a name of the person who was talking before my turn) has already mentioned, students were dancing and singing in a circle as if they were having a drinking party. Also, they had no particular reason for their actions.
I think it’s fine to dance anywhere, but the point is that they shouldn’t mix up public and private space.
Moreover, they filmed and shared it on the internet. I don’t understand why they had to share it on the internet, especially when they are not professional at all.
I have seen other videos of people dancing in supermarkets, but most of them are really good dancers and the video was for entertainment. And of course they filmed it with the help of the supermarket.
However, in this case, what they did was not entertaining for others.
It was more like self-satisfaction.
If I have to summarize my opinion, I would say that dancing itself is not a big problem, but uploading it means they were not feeling bad for it and this I think is the problem.
Now, let’s listen to her opinion.(the other person is going to talk the rest of the presentation)


That's all for my part.
I would be glad to know any of my mistakes.
Thank you very much!

Ken

It's my first time writing this.

I'm a little nervous about this. But I think this will be my first step to make friends on italki.  I'd like to introduce myself. I'm a girl from China. I just gratuated from high school. As a future college student ,I realize that it's necessary to learn English.  Could you be my language partner?

*As a native English speaker, the sentence "I wrote some words to introduce myself" seemed a little unnatural. I tried to replace it with a phrase that I think conveys the same idea.

Hope this helps!