I already beat the main story of the game, however, I am going to try to get 100% completion since I like the game so much. In this article I will be going over what I have been doing in the game.
Shrine Grinding
I’ve been going out to complete shrines. I have maxed out stamina and reached the second row of hearts! Sometimes I can’t figure out the puzzle within the shrine and just end up cheesing them.
Side Quests
I recently completed the Long Dragon quest. At the beginning, I didn’t quite get the quest, I spent an hour trying to figure it out when I realized all the statues were on the island. Originally I had thought I had to travel to a different region. I spent a total of 2 hours on that quest and was disappointed with the rewards. 
Exploration
I am currently exploring the depths and defeating all the bosses that I come across. Currently, I am pretty bad at the game, so I think Froxes are pretty hard to defeat. I think once I defeat enough it will become easy. This happened to me with Lynels, I remember I spent half an hour trying to defeat a Lynel. However, it helped with my parrying skill. Now I can easily defeat Lynels without dying.
I currently am just having fun exploring and defeating bosses. I will post another article later to update how my progress is going on 100% completion.