Hey everyone I'm completely new to AI Automation. So far, I only know that n8n can be used to build automations. I'd like to know how much budget is needed to get started. Can I build AI automations completely for free, or do I need to pay for tools like ChatGPT, AI models, or other services? I'd really appreciate it if someone could guide me on how to get started as a beginner. Thank you! 🙏