Sick!!!

Really, after of overcome recovering from an illnesss disease, you end are very sad, depressed and weak, but it's a time to begin again with better earnestly the same sincerity and so much conviction. I'm here again... thanks!!!

Good work, I hope that the phrase I suggested matches your meaning. I didn't quite know what you meant by "better earnestly," because "earnestly" is an adverb and "better" is an adjective.

Sick!!!

Really, after of overcome a disease, you end very sad, depressed and weak, but it's a time to begin again,
with better earnestly and so much conviction, i'm here again... thanks!!!

Hi Fabian. after overcoming a disease you feel very sad, etc.  then after again say with much (or great) earnestnes and conviction.

I'm glad you're back.