I know very little so please don’t mind a lot of stupid questions.

I want to do my masters in AI/ML but afraid that it will be difficult for me to understand. I am not a bright student and struggle with understanding maths a lot. how much maths does an average AI/ML person do in their job? what things I should keep in mind while learning AI/ML?
does whole AI/ML landscape has been taken over by LLMs? I have seen a lot of people complaining about CEOs shoving LLM every where instead of just a simple ML model.
what does AI/ML people do exactly? I mean what are their roles? does the most important task for an AI/ML person is to decide which model to use or is it preparing the data or understanding the requirements?


fine, you got me! I was terrible at it. but don’t I deserve a second chance?? I will do better in Masters.
I didn’t admit it in the post but I wasn’t mentally well when I was doing Masters. I had severe social anxiety and afraid of everything. which contributed into not so good performance in bachelors. but now after taking medicines for 2 years I am fine. it feels like Masters could be my second chance.