How do I deal with my husband and his family who taunt me about my lack of provisions, even though I hold a university degree and my husband prevents me from working?

Sustenance is in God's hands; creation has no part in it. It is not permissible to blame anyone for the difficulty in obtaining their sustenance. Neither your husband nor his family have access to the unseen to make such judgments. Therefore, they must fear God and desist from such statements. A woman is not obligated to work, and her maintenance and that of her children are legally incumbent upon the husband. She must obey him if he forbids her from working.