Does the following make sense?

Every year, December 1st was a day in which I woke up very early to sing and suprise my Uncle for his birthday. It use to be a day in which we use to eat cake and celebrate all day. Sadly, this December 1st will be the second time that this will not be happenning. Happy Birthday Juan, all the way to heaven. I know, he is enjoying every moment in heaven. I love him and miss my Uncle every day. Always in my heart.

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Cada año Diciembre 1 era un dia en que yo, me levantaba temprano para cantar y soprender mi Tio para su cumpleaños. Era un dia en que comiamos pastel y celebrabamos todo el dia. Tristemente, este Diciembre 1 es la segunda vez en que esto
no va estar pasando. Feliz Cumpleaños Juan, hasta el Cielo. Yo se que el esta disfrutando cada momento en el Cielo.Yo lo amo y lo estraño ver todos los dias. Siempre en mi corazon.

Yes, the statement clearly conveys the sentiment of the individual missing their uncle on his birthday and expressing their belief that he is in heaven.