Considering selling all of my stock to repay margin lending investments. What are the things I should consider?

I have \~$168,000 invested with only $56,000 of it as my cash. \~$78,000 is margin lending invested. I know that’s high. my return is about $33,000 (59%) right now. Total equity about $86,000. Most of the gains are in the last 3 weeks, 20% to 59%. it’s a heavily diversified portfolio with about 42 different companies. Heavy in technology, then split among oil, construction, medical, and various other companies. I am worried about the risk of maintaining the margin investing lending amount and losing it all if a crash happens and it’s called in to cover the loans. I am in the 22% tax bracket and considering taking the loss to at least secure my gains. I can offset some of it with a few stocks that are down (–$9,000). I understand the most I can offer is $3000 thought? any insight into this would be helpful. I have never had gains like this and so heavy in margin lending invested. need someone who has experienced this before to give me some insight so I can make an informed decision. thanks.