I’ve trained a Keras model and obtained a graph with training and validation loss curves. The graph shows the following pattern: enter image description here

Can someone help me interpret this graph? Is this a good fit? How can I determine if my model is overfitting or underfitting based on this graph?

I still have yet to tweak the parameters but this is by far the best result that I have obtained. the accuracy score of the model is 61% and I am sure I can achieve better scores by tweaking the code but I am trying to learn about the graph whether it is an underfit, good fit, or an overfit and based on that I want to move forward with the model.