Congrats on flipping items.
I like how you and your boyfriend were data driven.
You did well.
Assuming a 11.5% rate of return in the stock market is unreasonable.
When I had fewer resources, my best investments were in myself [learning skills]. Now that I have resources [I'm old], my best investments tend to be tactical stock market risks-- but events like March 2020 can come along and wipe everything out.
It is harder to wipe out a killer portfolio of work and the skills employers are looking for.