Corrections in red.  Stylistic suggestions in blue.

My Village's Festivities. Can anyone check my essay please? I would be eternally grateful!Thanks a lot.

Some festivities are celebrated in a particular way in my village. However, one of our festivities has become a good opportunity to have fun while dressing in all sorts of costumes. But it has also become the perfect excuse to get drunk, and sorrowfully, this is what I think people enjoy most sorrowfully. [1] 

I really have to admit that the village looks magical and mysterious. All the streets of my village are filled up with bonfires during the night of January 16th in my village, which keep their numerous hot, red eyes wide open the whole night long; as well as with the village's inhabitants who remain awake until the sun rises. [Good variant: ... until sunrise.]  During this fabulous and special night, they wear costumes, and walk around the village from one bonfire to another. In addition, they drink, and eat beside [2] the flames to keep warm.

After a few days, you can still see some people who haven´t put their fires out, because there is still some wood left which they want to consume, according what they say. But the real reason is probably that they probably feel like having some more fun. Finally, when they extinguish their fires and there is nothing more than ash, they want the bonfires to be like the phoenix.  They deperately want the next year to come quickly, desperately in order to start anew, and enjoy this magnificent festivity, which brings: joy and hangovers, and also some arguments among the neighbors.

[1] If you say "sorrowfully" at the end of the sentence, "sorrowfully" would relate back to the "people" who are getting drunk. However, it is you and people like you who feel sorrow.]

[2]  beside - al lado de     besides - además de    "Besides my wife, my children also sat beside me."   Además de mi esposa, mis hijos también estaban sentados a mi lado."

My village festivities. Can anyone check my essay please? I would be eternally grateful!Thanks a lot

Some festivities are celebrated in a particular way in my village. However, one of our festivities has become a good opportunity to have fun while dressing all sorts of costumes. But it has also become the perfect excuse to get drunk, and this is what I think people enjoy most sorrowfully.

I really have to admit that the village looks like magic and mysterious. All the streets are filled up with bonfires at night on January 16th in my village, which keeps its numerous red and hot eyes widely opened the whole night, as well as its inhabitants who remain awake until the sun rises. During this fabulous and particular night they wear costumes, with which they walk around the village from one bonfire to the other. In addition, they drink, and eat besides the flames to keep warm.

After a few days, you can still see some people who haven´t put their fires out, because there is some wood left which they want to consume according what they say. But the real reason is probably that they feel like having more fun. Finally, when they stifle their fires and there are no more than ashes, they want them to become a phoenix, they want the next year to come fast desperately in order to start over new and enjoy this magnificent festivity, which brings: joy, hangover, and also some arguments between the neighbors.