Is it normal that i feel like a total failure in life?

I think this is very normal. However, try not to feel that way. Being 21 isn't the same as being 31 and in the same situation. In fact, if you are 21 and already close to finishing college then you're actually doing very well. I know several people in my family who are just going back to college in their 30s after hooking up with the wrong partner, having kids or other responsibilities that they may or may not should have had to deal with that early. Not wanting to socialize is not a bad thing, I find those who run their mouth freely ALOT, especially around friends, are more prone to saying hurtful or even stupid things simply because they don't think before they say things. Most people want a significant other but being single is MUCH better than being with someone who doesn't treat you right or having to trick your brain into settling with someone who isn't right for you just to justify the effort. Of course, nothing is wrong with taking the risk in the first place.

As for me, although I'm going to school under a Simulation and Game Development degree, I'd really like to go to a music college as mine doesn't have hardly any opportunities in that field and partially feels like a waste of time. There are none like that around though so this is fine for now. Still, be happy about what you've done already at such an early age. Some people never go or finish and some wait until 30+ to do that. Just relax, be proud and keep moving, it'll all fall into place.

I'm 33 and feel like a failure, though for different reasons. It sounds like you might be suffering from depression.

You think of failure in terms of societal success but, news flash, you'll be dead in a few decades and everything you ever did will wash away upon the sands of time. Any person that truly values themselves by the job they do, opinion of peers, societal standing or fulfillment of dreams is insane.

If a human being is the most powerful animal on earth, and we are truly all alone, then start behaving like the god you are.

Hopefully, in the near future, nearly everyone's perspective on our existence will change. This will, in turn, change your ambitions and outlook. Persevere until then.

Excursus: Please stop listening to brain-dead politicians. You should not be thinking about or trying to find a 'job'. Instead, you should be thinking about finding meaningful work. A 'job' is only a piece of work, often a small miscellaneous piece of work, or a task which is imposed by a so-called authority or employer.
You might want to consider an opportunity in self-employment, perhaps in conjunction with others.

I think we all feel like that at some point of our lives.

I say this is definitely normal! Sounds like you are experencing senioritis to me. I felt much like you did in my senior year of college. But once I got out and started working, meeting new people, and had time to do things (besides read/study for class)- it has been much better! Maybe try to get a job somewhere else or volunteer. Do something out of the ordinary!

Yes.

All i can say is i hope you feel better.

This is the result of your programming during your upbringing. No doubt you were criticized and belittled a lot. You need to talk this out, and get on with your life.

If you don't enjoy something it will be much harder to be motivated. If you do, getting paid for it will be a bonus.

Change your shit around and do something you enjoy