Google Analytics 4 Reports

Question

I am saving events using ReactGA react-ga4 in google analytics. The method used to save the event is:

ReactGA.event({
   category: 'my event category',
   action: 'Event Action'
   label: 'my event label'
})

in realtime I am able to see the event being saved. The name of the event was the action which was set by me and if I click on that I can see event_label and event_category in which the values which were passed by me are displayed. but in reports I am not able to see event_label and event_category so that I can group my events accordingly like for a particular action these were the labels passed as shown in real time.

I have tried creating Custom Dimension in Admin in which I have created two metrics which are Event Label and Event Category and their value as event_label and event_category and then in explore I am selecting those metrics but I am not seeing any values.

Also I have tried setting a dimension using ReactGA.set({ user_name: 'abc' }) but I am not able to find that too.

Thanks