You could do what I did and race to 60 first, then reset and do a marathon too. 
(With the benefit of hindsight, I don’t actually recommend the race part. Or rather, for new learners, I’d recommend racing up to level 18 so you get the basics ASAP, do up to 32 at a moderate pace while beginning to read elsewhere, and do the high levels at your leisure.)
Even if you do race through the high levels early like I did, you won’t actually remember much, so there’s no real point. The high level kanji are the kind of thing you might see every once in a while in the wild when reading.