Peace of Mind

After having suffered too much because of my unhealthy relationship, which eventually ended up a month ago, I was afraid thinking I couldn't fall in love once again in my life. But as a matter of fact, at least I got back my peace of mind and finally got to know enjoy being alone. awwwww. How happy I am!

Peace of Mind

After having suffered too much because of my unhealthy relationship, which eventually ended (up) a month ago, I was (afraid) thinking maybe I wouldn't (I couldn't) fall in love (once) again in my life. But, I am pleased to say (as a matter of fact, at least) I have recovered (got back) my peace of mind and are finally (got to know)  able to enjoy  being alone/my own company. awwwww. How happy I am!

Hi, Yousil. Nobody has suggested any amendments. Your article is fine but I have suggested some cosmetic changes that might improve the read.   

Peace of Mind

After having suffered too much because of my unhealthy relationship, which eventually ended up a month ago, I was afraid thinking I couldn't fall in love once again in my life. *I wouldn't write it this sentence this way either, but I don't really see anything wrong with the way you wrote this sentence. But "as a matter of fact", *I would take this phrase out. at least I got back my peace of mind and finally got to know *how to enjoy being alone. awwwww. "How happy I am!" *This sounds a little unnatural, but technically it's not wrong.

Peace of Mind

After having suffered too much because of my unhealthy relationship, which eventually ended up a month ago, I was afraid thinking I couldn't fall in love once again in my life. But, at least I got back my peace of mind and finally got to know how to enjoy being alone. awwwww. How happy I am!