Greetings in that Divine and Most Precious Name of Our Lord and Savior Jesus Christ!
I am not saying that others do not have it worse than me. But that your whole notion of 'making the best' of it and/or 'being thankful' is rather stupid to be quite frank.
When the young Siddhartha first ventured out of the security of his childhood, he discovered that much like in a really bad Film Noir movie, that the world is a sorry place, and even the best of it can be discouraging. However, this only led him to understand the revelation of the First Noble Truth, that life is suffering. There is nothing else to say about the matter, and Christianity inherently agrees. We then through fasting, through prayer, through a lifetime cultivating a relationship with God, do not learn the magic words to make suffering go away, rather, we learn by God's Grace to with Christian dignity embrace our fates.
who, in the days of His flesh, when He had offered up prayers and supplications, with vehement cries and tears to Him who was able to save Him from death, and was heard because of His godly fear, 8 though He was a Son, yet He learned obedience by the things which He suffered.
Hebrews 5
Please always keep in mind, when you are in the depths of your pain, God is suffering too. All those things in the world that make us suffer, God suffers them with us. Neither I nor the other people suffering worsely should have to 'be thankful' or 'make the best' of evil in the first place because God should not allow us to endure the evil at all. Every act of suffering in the world is because of God. He could stop it all right now if He wished but He does not. Humans deserve better. I deserve better.
Maybe you do, maybe you don't, but however you slice that cake, our reality remains the same. The life you have is the only life you are going to get it, flaws and all. You can't change that, period. The suffering that we endure is so largely out of our hands, that its literally childish to pretend we can avoid it. Further, young children tend to accept this so much better than we do, just go volunteer in the LA Country Children's Court, where the kids have been sexually and physically abused or neglect, and yet they are playing, laughing, having sincere fun playing with each other in the waiting room, meanwhile just about every single adult in the room is dejected, depressed, and in burdensome tears. Maybe we can learn from the example of children, and bear our fates with a bit more joy realizing life is what we got, and its all we got, so we're best to enjoy it as best we can regardless of the circumstances.
Quit kissing God's behind and instead demand the justice you deserve from Him. Satan is a true martyr because He recognized this fact and stood up against God, even giving up his glory and spot in Heaven, just because it was the right thing to do. And going further, he even further risked his life by enlightening us at the 'fall' despite knowing that God would probably punish him.
No, Satan is the entire source of suffering in the first place. He is so miserable from his own dejection by God, that he wants to make us all as miserable as he is, so he reminds us and accuses us and tortures our imaginations with all the self-defeating "what-ifs"? Simply put my young brother, that life is life, as we say around the hood, "It is what it is." We Fell, not God. Life is what it is. The question now is what can we make of it? You are a young man, but you are becoming a man. As a man, your life is what you make it. If you want to be miserable and accusative, then so be it. But all that rage will not fulfill you, it will consume you. Adults become wise enough by experience to pick their battles and celebrate their victories no matter how small in scale. Every little bit counts, every day we move the ball a little further down the field, and why the defense has a horrifying blitz, if we still play the game with poise and dignity and give it our sheer best, we just might score that winning touch down and enjoy the game

I am praying for you and us all.
stay blessed,
habte selassie