Going to give everyone some frank advice.
Instagram and TikTok - Delete this nonsense if you have any self respect. Why would you, a grown adult, be engaging with a platform where people share information via frivolous pictures and video clips.
Facebook - Yes you should have a Facebook account, and you should use it to stay in touch and up to date with friends and family. You should log in every few days and “like” some posts, give people a little bit of validation which they’ll appreciate. Occasionally post a holiday snap or a funny anecdote.
Whatsapp - women probably should not join whatsapp groups (except immediate family), but it is a good medium for banter among male friends.
Twitter - It’s reasonable to spend a lot of time reading Twitter, given the quality of content and its primacy in global discourse. You must disable “media preview” so that it’s text-only by default. Your account should be anonymous, or at least, not obviously associated with your real name and real identity, given that it’s public by default. In general it’s a mistake to become too invested in your online persona - I suspect most social media addicts make this mistake. Contribute sparingly. Forget “the algorithm” - carefully curate your feed and unfollow anyone with a bad signal-to-noise ratio, or who tweets excessively.