I don't expect to get a job after dropping out. My parents will let me live with them at least. So I have a good 3-4 years.

I was planning to read a lot of source code, write a lot of code/contribute to open source, and study formal CS on my own. I think after 3-4 years I would have as much programming and formal knowledge as if I had stayed in college, and maybe more.

I'm wondering if the lack of a degree would hold me back significantly.