Trying to deal with someone blocking me who owes me $

So, this person owes me a ton of money, 10k+ to be somewhat exact. They strung me along for a while then completely blocked me from all access. This infuriates me and makes me want to go spin the block on them. However, this person has kids so I’ve been hesitant to go and try to get them face to face. But I’m running out of patience…