That is a lot of loss you have survived, maybe the house was a reminder and a last straw.
I really feel for you.

I think, whether or not your exhaustion is due to depression, or you're worn out by anxiety,
Some medical and/or therapeutic help may be beneficial.

Also being kind to yourself, and allowing some recovery time with support from your Mom and boyfriend will hopefully bring some healing.

I hope you can get the support you need.