Welcome! Keep in mind nostr it isn't a social media platform like TikTok but a protocol that can house every social media app and much, much more.

Additionally, you fully own your identity (your private key) and can take it to any app that gets built on the platform. There have already been a litany of apps built to mimic many of the well-known platforms and more are currently in development. Last thing to keep in mind is you're incredibly early so this is akin to getting on the Internet in the early 90s. Just don't die of dysentery.