Powering up is essential. You might take a gander at your activities page. Click on the following link.
There should be a check box in the REWARDS section with the label: "Curation Rewards"
Click that box. Hmmm, you will notice that you have not received any curation rewards. You've upvoted 165 times, but you haven't received a curation reward.
The curation rewards section on HiveStats will confirm this:
https://hivestats.io/@johnripper
This is what is happening. As you probably know the rewards come from inflation on the HP in your account. Half of the reward goes to the curator and half to the author.
What you probably don't know is that the minimum curation reward is 0.001 HP.
The value of your upvote must be worth over 0.002 HP before you will start receiving curation rewards.
I like using the peakd.com interface because it shows me the value of my upvote calculated to three digits.
I see that you often upvote at 50% voting power. You probably should upvote at 100% power. Yes you only get 10 upvotes a day, but you will start receiving your curation rewards.
HiveStats shows that you now have 147 HP. If you turned your voting weight to 100% and start making sure that your upvote is well over 0.002; then you will start receiving curation rewards.
BTW, you probably shoule stake the coins in your Hive-Engine account.
Hive engine rewards often exceed HIVE rewards. I would stake the coins of the tribes that sound interesting. I would sell the tokens of the other tribes and buy tokens in my favorite tribes. I have 10 LUV; So, I will give you some LUV.
Ooops I wrote the post in the wrong account. 
RE: I just learned about Hive Power up day!