Is that a sin? Or do I just talk with Jesus or the father and tell them how I’m feeling?
God knows how you're feeling whether you tell Him directly or not.
Your question is really about the proper way to interact with God. Should you just "let it all hang out," just be totally, brutally honest with God and give Him both barrels when you don't like how He's dealing with you? This might be how humans think it's best to interact with each other, but God isn't one of us, He's not a human; He's your Maker, the Creator of Everything, Lord Almighty. In other words, God deserves your highest respect. However you may feel about God, He is never worthy of your anger. And He is certainly never deserving of foolish words spoken to Him in a moment of emotional heat.
Many will tell you that you must always be perfectly honest with God about how you feel. But, as I said, you are an open book to Him; He always knows exactly what you're thinking and feeling. Many will say, "God can take it. He's big enough to absorb all your rage and bitterness. So, let it all out." But this isn't what the Bible says:
Ecclesiastes 5:2
2 Be not rash with your mouth, nor let your heart be hasty to utter a word before God, for God is in heaven and you are on earth. Therefore let your words be few.
Job 40:1-5
1 And the LORD said to Job:
2 “Shall a faultfinder contend with the Almighty? He who argues with God, let him answer it.”
3 Then Job answered the LORD and said:
4 “Behold, I am of small account; what shall I answer you? I lay my hand on my mouth.
5 I have spoken once, and I will not answer; twice, but I will proceed no further.”
Job 42:1-6
1 Then Job answered the LORD and said:
2 “I know that you can do all things, and that no purpose of yours can be thwarted.
3 ‘Who is this that hides counsel without knowledge?’ Therefore I have uttered what I did not understand, things too wonderful for me, which I did not know.
4 ‘Hear, and I will speak; I will question you, and you make it known to me.’
5 I had heard of you by the hearing of the ear, but now my eye sees you;
6 therefore I despise myself, and repent in dust and ashes.”
Isaiah 66:1-2
1 Thus says the LORD, "Heaven is My throne and the earth is My footstool. Where then is a house you could build for Me? And where is a place that I may rest?
2 "For My hand made all these things, Thus all these things came into being," declares the LORD. "But to this one I will look, To him who is humble and contrite of spirit, and who trembles at My word.
Proverbs 10:19
19 When there are many words, transgression is unavoidable, But he who restrains his lips is wise.
Revelation 1:12-18
12 Then I turned to see the voice that was speaking with me. And having turned I saw seven golden lampstands;
13 and in the middle of the lampstands I saw one like a son of man, clothed in a robe reaching to the feet, and girded across His chest with a golden sash.
14 His head and His hair were white like white wool, like snow; and His eyes were like a flame of fire.
15 His feet were like burnished bronze, when it has been made to glow in a furnace, and His voice was like the sound of many waters.
16 In His right hand He held seven stars, and out of His mouth came a sharp two-edged sword; and His face was like the sun shining in its strength.
17 When I saw Him, I fell at His feet like a dead man. And He placed His right hand on me, saying, "Do not be afraid; I am the first and the last,
18 and the living One; and I was dead, and behold, I am alive forevermore, and I have the keys of death and of Hades.
If there is anyone who deserves your utmost respect, love and humility, it is your Maker and God. He is never at fault, whatever you might feel. When you shake your fist at Him and cry out in anger at Him, you do wrong, then. You may be a joint-heir with Christ, if you're one of His, but you are ALSO a created being, God's vessel for His use, His bondservant, His entirely-dependent sheep, a branch in the Vine that He is; you are inferior to God in an enormous, staggering degree and your interactions with Him ought always to reflect this reality.
It is secular, godless thinking that has crept into the Church that prompts believers to think they need to "be honest" with God and fling abuse at Him, raging against what He has or hasn't done. What they really need is to drop to their knees in humility and repentance and confess the evil of a heart that would rail against God, that would think it knows better than He, that would presume to judge Him.
1 Peter 5:6
6 Therefore humble yourselves under the mighty hand of God, that He may exalt you at the proper time,