How can I change the trainning options of AlexNet to train the network for my images?

Hi, I need to adapt the AlexNet network for my images and I don't know how do it. My database contains more than 9,000 images of the same type and I want to train AlexNet network to recognize my images and I obtain a prediction. I think I must change the training options but I am not sure how do it. Can anybody help me?

Thank you so much

options = trainingOptions('sgdm', ...

'MaxEpochs',5,...

'InitialLearnRate',1e-4, ...

'Verbose',false, ...

'Plots','training-progress');