Hi I want to be a quant engineer, could you guide me

Hi, ma'am I like your writing, it's so smooth . If you don't mind Could you make a blog on web development vs app development ? , as I have/am doing java , my friends said that the web has money, and one of my cousins who knows kotlin and also worked as an intern , now shifting to full stack. , I have an idea for a project which is basically building apps, so I have to learn apps for a single project but I want to learn the web during my summer vacation? 😭 But I want this project also be done. What to do ?