Aldershot trains

I am going to aldershot by train this Friday for an event to be there for 9am. I haven’t used a train before and wanted to know is it easy to do?

It’s Southampton central and then to brookwood train station then to aldershot how do I switch over to go to aldershot within 5 mins changeover? I’m worried if I miss it I will be late.

Sorry never really used a train before and don’t want to be late appreciate the support.

If someone who does this frequently knows how to that be appreciated!