Congratulations on your promotion!恭喜您升職！
要祝賀某人在某方面獲得成功，可以直接說Congratulations on…或者說I congratulate you on... 如：Congratulations on your graduation /I congratulate you on your graduation.(恭喜你畢業了。）請看下面的例子。
Congratulations on your promotion! You must be excited.
恭喜您升職！您一定很興奮吧。

I feel blessed to have your support.有幸得到您的支持，讓我感到十分幸福。
feel blessed的意思是"因……而感到幸福/高興"。讓我們看看下面這個長例句。
I took the position of CEO exactly a year ago. I feel blessed every day to have the support of each and every one of you. Without you, our company wouldn't exist now. Thank you again for your hard work and support.
我就任首席執行宮一職已滿-年。在此期間，有幸得到各位的 我感到十分幸福。如果沒有你們，我們的公司將不會 展至今。因此，我要再次感謝你們的勤奮工作與大力支持。