Hi guys.... I'm from India.....recently joined this community and very excited to learn and build together with you guys. Brendan's videos inspire and educate me a lot. I'm a beginner trying to build an AI voice agent for the trades business (electricians) using Retell AI. I wish to be really successful with this. I aspire to sell each of the agents for at least $1K/mo. What all do I need to learn to achieve this? Do I need to learn n8n? Please guide me through this. Thank you 😊