Before you give a Bracha, you try to be in a happy state, like it says: וַעֲשֵּה לִי מַטְעַמִים כַאֲשֶּר אָהַבְתִי בַעֲבוּר תְבָרֶּכְךָ נַפְשִ י תולדות כז ד “Make for me tasty food, the way I like it, so that my soul will bless you”. People who even just work on Bitachon should realize their own greatness even if they don’t feel it, and they have much more Koach Bracha than they realize. Yet, it’s interesting that when Yaakov actually gives Paroh a Bracha, it is proceeded by his tale of woe about: מְעַט וְרָעִים “my sad life”! Perhaps we can say (at least: בְ דֶּ רֶּ ךְ רֶּ מֶּ ז as a Remez) that when he gives the Rasha, Paroh, a Bracha, he gives him “Yener Bracha”. And indeed: הֲטֶּרֶּם תֵּדַע כִי אָבְדָה מִצְרָיִם וארא י ז Mitzrayim was eventually destroyed!
We can also suggest that: מְעַט וְרָעִים “my sad life” means his difficulties in Avodas Hashem, since he was born as a twin of a Rasha, and therefore he had extra work (like Dovid HaMelech, the: אַדְמונִי ש"א טז יב flaming red head. Sefer Sidduro Shel Shabbos), whereas his father and grandfather didn’t have to struggle the way he did. And this is actually the biggest Simcha, since: לְפוּם צַעֲרָא אַגְרָא אבות ה כב the reward increases according to your effort.
We have to constantly review how good is Hashem, and how much more goodness without limit is available to all those who connect properly with Him