What can I do if my ex spouse doesn’t want to give me our agreed spousal support?

My spouse packed a backpack and walked out the door after 13 years together 7 of which we were married. We were communicating and friends and he was giving me our agreed spousal support. The day before the normal deposit, he said he didn't have any money and all support stopped which caused a complete financial catastrophe. We owned a business together and had 2 other businesses that were not in our name but were getting percentage of. He is now claiming in his court filings that those businesses have closed but under investigation. I found he changed names and made them a partnership. He has an attorney who is a criminal attorney he had for businesses. He has lied on every form he has filed. Also not snowed up to mandatory hearings, he is now in contempt and facing sanctions. His income and expense declaration I had to purchase copy of although he claimed he sent to me I never received. We now have a mandatory management order and although I can barely put gas in my truck (which is in his name as well as everything pertaining to property). I can do payments with help from family and the few friends I have. I have argued with myself about giving up and dealing with the debt he has left me with, but doesn't seem fair to be in a worse place then when I met him. Also, have every promise ever made and all lies as I have saved every text message for the past 2 yrs of our separation. If anyone can help or can refer me somewhere or to someone who can at least guide me, I would be grateful. Thank you.