Absolutely: "never ever sign anything that my H places in front of me" without first consulting your lawyer, and unless you agree fully. He may try to pressure you, and threaten by listing less agreeable terms, etc. You always have the option of saying you will think about it and get back to him. Nothing ever needs to be signed immediately.
you're right in taking this time to educate yourself and talk to the right people. and many times, friends and family are not the right people, they mean well, but use the professionals.
the loneliness is up to you to remedy.
"In a ham and eggs breakfast, the hen is involved, but the pig is committed".