i've checked for papers that do exactly what you want.

so as I assumed this data is time sensitive and therefor you need an additional temporal dimension.

this model needs to be more complex in order to solve this problem.

i suggest reading this:

https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/s12911-021-01736-y

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BTW: have you tried grid search for finding the right hyperparametrs?

oh and your model does improve..

have you increased the data set size??