Asked about Memorising instead of learning
Your learning curves have converged and both are poor. What now?
An answer that works
More data will not help, because the model has already extracted what it can. The answer is more capacity, better features, or a different model class.
Reading an answer is not being able to give one. The section that teaches this is Memorising instead of learning, 5 hours of Overfitting & regularisation.
Learn this properly