The trip is so amazing sister. You have mentioned every part of your trip with quite details and briefness. darshan of Tirupati temple is a nice place. You went there for pilgrimage, I hope you have nice experience there, you enjoyed alot, and your soul got purified. As you have mentioned you have travelled 500km so it's too much long distance.
By the way way I like long drive with my favorite persons and I never get boar of it