It's a pity that you lost faith. However, you should give yourself pat on the back for at least uploading it! I suggest this video and in general this channel, he touches a lot of problems often faced by gamedevs:  

Hi! Unfortunately, I was unable to understand how to play. :( Try to say something about the controls in the description so we can try again!

Some info about the controls or how much each upgrade cost would be perfect because as a player you don't know anything when you hit play.

Hey The game looks cool and you did a great job on the art but I couldn't figure out what teh objective was and what I was supposed to do. Maybe I'm just a little dumb but it is an indication that you should have some sort of controlscheme, a clear objective or both for an even better result. I think it will help future players !