Saving money and not using debit card


I get paid 400 dollars and I pay about 80 dollars on other stuff and 70 dollars on groceries it leaves me with about 250-300. I'm trying to save money and become an adult I hate going to my debit card and seeing I'm using it for stupid stuff. So I'm thinking about getting my mom to lock up my debit card. Would that be helpful. Because I want to come out with about 1000. Before january is that possible. What can I do ?