Blind advice is better than no advice, I suppose. So here's my two pence - and maybe a bit of sarcasm to keep it real.
first up, you actually need to know what you're selling and who gives a damn. Why do people buy from you? What makes your thing not just another lump of mediocrity? Niche down until it hurts. Then look at what competitors are charging. Undercutting feels clever for about five minutes, then it just makes you look desperate and broke. Don't be that guy.
Once you've nailed product, price, and buyer, then - and only then - touch social media. Facebook, TikTok, Instagram. Pick three competitors and creep on their every move. copy what works, but make it unapologetically yours. Don't just rip them off for the sake of it, steal like an artist, not a toddler.
now for the strategy bit that everyone loves to overcomplicate. Each platform is a different beast. Instagram and TikTok are not the same species. Plan four content buckets: brand awareness (40% of your weekly posts), trending crap (20%), product show-offs (20%), and actual "buy this" posts (20%). Throw in some behind-the-scenes, pain points, and honest rambling too.
Budget wise, set aside 20-25% of total expenses for marketing from day one. But start organic three months before you touch paid ads. Then follow analytics like a hawk. double down on what works, kill what doesn't. Do not keep pouring money into a dead channel because you're emotionally attached to it. That's how you end up with a burning pile of cash and zero sales.
hope this helps, but honestly, the real trick is not overthinking it and actually doing the boring groundwork first.