I hate to break it to you, but your family is toxic. Family can be toxic - I was in a similar situation and I had to swallow this extremely bitter pill.

Unless you have a good personal network, it takes years to succeed in business. It’s great you tried, and don’t give up. Start something again.This time spend less money up front and try and make money.

Business is about perseverance more than anything else. And negative people will dissuade you from achieving your goals.