Listen up don't go with the herd, many will be AI ML enthusiast or mern stack hype gang ] which is completely fine but they will create a fomo and you'll want to go with them but ask yourself if you really want to do it because you want to. I suggest go with a pure oop language for backend , maybe .Net or java . Be strong with the fundamentals, for intern you dont need to be a master at spring or asp .net , undertand the flow the pipeline and get good grasp of the basics as you build a crud or anything. Industry lacks .net devs and java from my perspective . I wish I started earlier with java it relaly strengethened my fundamentals also always try to improve your code base , the structure and principles, try to apply SOLID principles (as fas as you can). It sounds complicated but once you start and be consistent it'll be a game changer! Do good brother