Sounds like you went on a little "binge" there. It's far from the most self-destructive thing you could have done. So don't get into guilting yourself too much.

Congratulations on dropping down 4 sizes. Think of the furniture as an investment. If you really liked the stuff, it will bring you satisfaction for years to come. Let the new sports bra incentivize you to do something physical, while wearing it within the next week.

Then figure out what has had you feeling stuck lately. This sounds like an attempt to burst through some bonds that were getting too tight. Your T might have some insight.