There will come a time in the later levels that you do a full set of vocab lessons that all have the same reading as the kanji and you will feel euphoric. They’re rare, but they exist.
Of course, for every time that happens, there’ll be the time time 不 is げ instead of ふ for example 
basically, wk will some times be
and other times will be
I wasn’t prepared for the emotional roller coaster tbh
Oh man I was getting comfortable with 不 being one of the readings I could consistently guess, and now you’re telling me it’ll join the ranks of all the others that have messed me up? Another thing to dread look forward to in this adventure!
Then 否 boy will enter the scene to bring your ruination
The thing is, all these different readings are used in different words. There’ll be many times when you feel like you’re guessing a reading, but with continued use of the SRS system, the reading will just stick. I know vocab using 上 (and other kanji like it that have a huge number of readings) can seem overwhelming, but it also means you get to see that kanji being used in many more different ways than other kanji. Over time, the sheer amount of exposure makes it a lot easier to figure out what reading to use.
(And then you’ll have kanji like 太 that have one on’yomi reading you ever need to remember and you’ll consistently get it wrong for six months.)
On the bright side, there are things like phonetic-semantic composition, where kanji with certain radicals have the same pronounciation (basically) everytime. So it does get more and more easy over time 
Yeah, exactly - they’re all just words and although it’s harder than learning the different pronunciations of English, for example, it’s still just something we’ll learn by repetition.
Thank you for this positive outlook of the future.
You have a lot of company Media san. When I was in levels 1,2,3,4. I couldn’t remember じょう or Jourm prompt no matter what I did. That was one of the early ones I couldn’t answer probably 20-30 times or more. At some point I repeated it so many times now I can recall じょう or Jourm in at least 90% of the cases easily (which is the underlying selling point of SRS.) You need to stick with SRS long enough and it will stick with you. I have a whole lot of words which frustrated me to no end (Looking at you あらかじめ 
) . I didn’t get it right even once in the first ten times, now I went through that so many times my mind automatically recognizes the reading and answer.
TLDR - You will be frustrated. It is expected. Keep calm and do your reviews 
and don’t forget to have FUN 
welcome to Japanese language
A bit off topic, but what is the reason to reset to the beginning after level 60?
Uh that is nice to hear for sure. I am not alone indeed. Arigato gozaimasu Jiro san.
Let me introduce you to the most badass thing anybody as ever done on this forum:
I sincerely hope that reading that section of thread enriches your life as much as it did mine.
Wow, that’s a badass backstory 
That’s a textbook case of “Actions speak louder than words” 
You are welcome Media san 
I’ll let you in on a little secret 
You secret to success is through the community/forum. It gives you the strength to push forward when things inevitably get difficult. And you will come across wonderful people and nice tricks/tips/hacks and it will make your life much easier and have fun at the same time 
(I am glad I discovered the secret in my 2nd month rather than 2 years down the line )
I might be a little biased about my favorite thread, but if you are interested you can join us in the below thread 
(You don’t have to aim for Level 21, you can chose a goal of your liking.)
Nice! If I make it to level 60 I think I’ll just stay there though 
I don’t really know if this will help, but if you’re still struggling to remember the different readings, you could try memorising those words with 上 as just vocabulary (you could just use hiragana, as well). I learned those words before WaniKani and found them easy when I did it in WaniKani 
Yeah this will all seem minor once you get to 登る or 昇る. 
But hey; here’s something fun. Have you played the up and down game yet?
Quick question if you do not mind me asking. But why don’t you level up anymore and also can you pick which level you restart from?
Just wondering thanks.
I don’t really have any particular need to study with WaniKani right now.
Yes, you can reset to any level you want to (below your current level, of course). From the Dashboard, if you click on your profile dropdown thing, and then choose Danger Zone, you can do it.