19 days, 245 sessions, 123M tokens in Claude Code: the 7 things that actually mattered

Hey there! A blue dino from Chile, South America. I've been a solo-preneur for the past 9 years. I've just completed my first 3 weeks using Claude Code (Opus 4.8, which accounts for about 86% of my usage). During this time, I have had 245 sessions, sent 70k messages, and utilized 123.1 million tokens. Here’s what I’ve found to be effective: CLAUDE.md and Persistent Memory Are Key : The real transformation occurs when you shift from "smart autocomplete" to having a "teammate that remembers our decisions.” Th