It’s a problem. I have like 10:

• my main online handle (not this one)
• something with my name
• a family domain
• a few for business ideas
• a couple variations of the above

I only use three:

• online handle - it’s my new junk email domain
• family domain - personal email
• family domain with a different TLD - self-hosted stuff

I should probably give some up, but I’m a little attached to them.