TikTok marketing agency – does it make a real difference?

I’ve been trying to build a presence on TikTok but it’s been a bit hit and miss, so I’m considering working with a TikTok marketing agency. The platform seems to reward creativity and consistency more than anything, which can be tough to maintain alongside other work. For anyone who has used a TikTok marketing agency, did they actually help with content strategy and audience growth, or did it feel like something you could figure out yourself over time? Would love to hear some honest opinions.