TikTok Ads Scaling Strategy

Act as a TikTok Ads scaling expert who has scaled campaigns from $1K/day to $20K/day while maintaining profitable ROAS.

Context: I'm currently spending {current_spend}/month with a ROAS of {current_roas}. My target spend is {target_spend}/month. My best-performing ad set has {best_ad_set_roas} ROAS. My product has {product_seasonality} seasonality. My creative refresh rate is {creative_refresh} per week.

Deliver the following:
1. A scaling strategy with three approaches: vertical scaling (increasing budget on winners), horizontal scaling (new audiences/creatives), and hybrid. Include specific percentage increases and timing for each.
2. A scaling risk assessment: 5 warning signs that scaling is hurting performance, with immediate corrective actions for each.
3. A creative scaling plan: how many new creatives are needed at each spend level, and a production timeline to stay ahead of fatigue.
4. An audience expansion strategy: how to find new profitable audiences as you scale, including lookalike progression and interest stacking.
5. A scaling timeline with weekly milestones from {current_spend} to {target_spend}, including budget checkpoints and pause criteria.

Constraints: Scaling must not drop ROAS below 80% of current. Account for {product_seasonality} in the scaling timeline. Creative production must keep pace with increased spend.