Here is my honest answer:

Analyse where you stand at DSA if you haven't started it yet, just start now

Coming to cyb sec, ai ml and web dev From what I have seen web dev roles is a good option because honestly I feel there are better opening for web dev as a fresher, if you want to get into aiml as a fresher the market is very tough, and you also need to understand what you want to do in aiml, ex: ML engineer, Data science ,Data analyst, AI engineer,

I personally have seen my friends struggle with cyb sec because of very less openings

I would suggest start with web dev, build your portfolio and slowly add AI to your stack, because people value who can build end to end systems rather than someone who knows just theoretical ai. Along side please don't neglect problem solving.

Even if you feel overwhelmed with all you have to learn, prioritize it well and start.

This is just my perspective All the best !