Hi 
Well, remember this is just feedback, it is entirely up to you what you choose to do with it.
If I were in your position, what I would probably do is maybe make a list of all of the feednack.items you receive, include other items you yourself are already aware of.
You could use tools like Trello or Hack 'n Plan, GitHub etc for this.
I would then sort the feedback into “bugs” and “new features”.
Getting your game onto Google’s play store would be a great way to go, mainpy because you complete the circle from idea, development, released product.
Again, if it were me I wpuld prioritise those bugs and new features. I would treat bugs as always a higher priority than new features. I would personally choose to resolve the bugs before releasing to the play store, I am quite driven by quality, so I wouldn’t feel comfortable, personally, releasing something I knew had some bugs.
New features are different as you can release these individually or as a batch in an update after release.
I would probably also consider the player’s learning journey and the consistency items before releasing also.
Regarding what you do next, that is entirely your choice. You could do any of the things mentioned but perhaps they are not all mutually exclusive? For example, you could say, “I will give myself two further weeks of development on my Block Breaker game to address the bugs, then I will release it to the play store. After that, I will continue with the course but schedule a new featyre every two weeks for Block Breaker and release updates to the play store once each month”.
This would cover most of your considerations and give you a plan to work to. Some deadlines etc. Be sure not to release incomplete features, better to postpone the update and deliver a quality release.
Also, as a suggestion only, whatever you do, consider keeping a journal of the activities. Should you consider approaching employers at any point you will have a fantastic timelime demonstrating your development, planning, updates, releases and continued education. All that as a side product of doing what you enjoy by keep a few notes in a diary. 
Keep us all updated on your progress in any case and please do keep sharing your projects and updates. It is very inspriring foe new students to see other students getting as far as you already have, and you get a community who can provide you will feedback and new ideas.
Final thought… If you are going to sell your Block Breaker game on the play store, I would also consider more levels… perhaps at least 25 as a minimum but then on each update, add a few more. This would give customers a sense of real value as they keep getting more for free. If you are thinking of putting it on the play store for free this is perhaps less of a concern initially.