Summoner level

Is level 60 the highest it goes, I no longer getting xp points how am I gonna get mastery point s and level up to get more

Comments

60 is the highest.
You can get more mastery points by exploring act 4 if you haven't already

I explored act 4, should I try it again

Yes you should

Act 4 100% and level 60 = no more mastery points