Guardian's Journey (Book #1): A Portal Progression Fantasy Series

The next book of the series! Guardian's Journey (Book #2): https://www.amazon.com/dp/B0F9X12R71 I'd dedicated my whole life to becoming the next Guardian of the Empire. I'd seen it all: endless killings wars and coups. I was gifted and I became the youngest of the Genius rank striking fear into the hearts of my enemies. Evidently that wasn't enough. My real journey only began when I lost everyone who was dear to me and then used a secret Guardian technique to travel one day back in time - so I could get revenge on those responsible. Only now it seemed I'd gone back much further than one day and there were many more of them than I'd expected...