https://lethain.com/forty-year-career/
What are other fastest paths to financial success? Currently am a software engineer, so looking for advice in this career choice.
Hitting 3 "about-to-IPO" companies that actually do IPO and also give you a decent return is very, very low probability. One of the first startups I worked for, during the dot-bom boom, went IPO. Less than two year later it was near bankruptcy. Everyone's options were under water. Maybe a couple guys cashed out a bit, but nothing life changing.
Step 1: Don't be poor. Step 2: Repeat.