Honestly, the biggest lesson i learned way too late? Getting clients is the easy part - keeping operations from falling apart is the real graft.
Early on, I thought if we smashed performance metrics, clients would stick around forever. Took me way too long to realise that communication, expectation setting, and trust matter just as much as any vanity number. Clients don't just want results, they want to feel like they're in the loop and that you give a damn about their business.
Another thing that stung: not every client is worth keeping. I've had ones that shift goals every week, ignore the strategy we agreed on, or expect overnight miracles from a £500 budget. Those relationships drain you faster than they pay the bills. letting go was hard but necessary.
Burnout also crept up on me silently. When you're juggling sales, strategy, reporting, calls, creative sourcing, and account management solo or with a tiny team, it catches up before you even realise you're running on empty. No amount of great UGC or influencer partnerships can fix that if you're fried.
what finally stuck with me: clients stick around when they feel informed and confident in what you're doing - not just when the numbers look good. Authenticity in how you communicate is worth more than a perfect ROAS.