Start by creating good content.
If you can't create good content, just create content. Lots of it.
Be disciplined in creating it all day, evrrrryy day.
Start with TikTok and Instagram, remember to #hashtag your posts, and then move on to YouTube by including keyword-friendly titles + description.
Oh, and find a niche to focus on, not some daily-life nonsense.
If you like travel, focus on just travel content for a start. Keep it simple.