My Husband is Choking Me!!!

I have been married for 7yrs now with 3 kids, the youngest is 5yrs old, for the past 4yrs i have been the one supporting the family financially, from feeding to school fees everything and it has been so depressing, the most anonnyoing part is that my husband has a high standard of living, i was not born with a silver spoon, even when he is broke he still lives like a rich man, he spends my money on things i dont approve of, i cry almost everyday because of his spending habit, he is not even doing anything about getting a job or even starting a bussiness.i feel like a slave an eduacted one, the latest thing he did that i got fed up was when he too a loan of 2m to put in ponzi scheme, the ponzi scheme is 30% and the loan he is paying 15% interest.that is not enough for him , someone introduced him to another ponzi scheme that pays 100% and he carried 1m from the loan and put , its more than a month now he has not been paid, he even carried my 550k that i was saving in his account to add to the ponzi scheme  am thinking of leaving the country but my kids are the problem, my bussiness is going down gradually because of how he spends money, in a month we spend nothing less than 300k on upkeep, even the school my kids attends is one of the most expensive schhol in this town, i told him about changing the school and he refused but am the one paying school fees. if you try to keep the spending low he will be angry and will not talk to me and he will say am been greedy , am so depress and dont know what to do, i have talk to him, adviced him but still the same even getting worse by the day, i have really suffered i go to china to buy goods for my shop, i know what i usually go through, if he has small money with him the first thing he thinks about is to go on vacation on a pleasure trip alone, i feel so depress to the extend of killing myself, i told my parents about the whole situation and they called him and advice him too but still no changes, please advice, thanks