While more can always be said, below are some similar questions with answers:

• u/Hyo38 asks "Was FDR's New Deal a success or failure?" - u/Medium_Collection answers here
• u/Foot-Note asks "The Great Depression: What caused it to last so long, and were interventionist policies and the New Deal to blame? - u/llordlloyd and u/Kochevnik81 provide detailed answers here