I did nothing but study for the past week, so I feel liberated now!
I was studying non-stop all week, so now I feel free.
過去完了形を使う場合では、「勉強してた」も「開放された気分」も過去です。
例えば、開放された気分は１週間前。その前の１週間（今から２週間前に始まった１週間）の間にずっと勉強していました。
I had been studying all week, so when I finished the test, I felt liberated.
一週間ずっと勉強してきたので、テスト終わった時に、やっと開放された気分でした。
I just finished my last exam, so I can finally breathe!
My last exam was today, so I'm free as of today!
I feel so relieved that exams are over! I can smell freedom!
I can smell freedom! / I can taste freedom! - expression that means that you are very close to or almost free
I can finally breathe! - this exclamation is used to express freedom that you feel after stress or getting over something or someone that has been making you feel stressed or overwhelmed
I can smell freedom! / I can taste freedom!
「自由のにおいがする！」「自由の味がする！」
この表現はもうすぐ自由になれるという意味です。
I can finally breathe!
「やっと息ができる（休める）！」
この感嘆の声は、何かストレスになることやプレッシャーから解放されて自由になる、と言う喜びを表しています。
My last exam is now history! Now I can break my shackles and really let myself go!
Exams are finished, school's out!
To break/throw off one's shackles = to reject something or free oneself from it because it was preventing one from doing what one wanted to do
"There are a few who have managed to throw off the shackles of the past."
"India was a country ready to throw off the shackles of its colonial past."
To let oneself go = act in a relaxed or uninhibited way.
"You need to unwind and let yourself go."
School’s out = It's the end of the school year
To break/throw off one's shackles = 何かを拒否する、やりたい事を妨げるので何かから逃れる
"There are a few who have managed to throw off the shackles of the past."
（過去から逃れられる人は少なくない）
"India was a country ready to throw off the shackles of its colonial past."
（インドは植民地の過去から逃れることのできる国だった）
To let oneself go =リラックスした、あまり構わない状態
"You need to unwind and let yourself go."
（あなたは緊張をほぐしてリラックスする必要があります）
School’s out = 学校の最後の日
I died studying but finally I got my free time back!
This would be an excellent opportunity to use a hyperbole or exaggerated expression. You could say: "I studied to death (or I died studying) for my examinations." This is a colorful way of saying that your studying was so severe that it is as if you felt you were going to die. A word of caution: If this phrase isn't used with an appropriate amount of feeling, it will be misunderstood.
One way of expressing the thought that your studying stole many precious hours from you is to say that you got your free time back. It is as if your free time was lost or stolen, but finally returned to you.
これは、誇張の表現を使う素晴らしい機会です。
"I studied to death (or I died studying) for my examinations."
テストのために死ぬほど勉強した。
これは、勉強があまりにも大変で死ぬような思いをしたという豊かな表現です。
注意: このフレーズが適切で十分な表現で使われないなら、誤解されることがあります。
勉強の時間が自分の自由な時間を奪ったという表現は、you got your free time back（自由な時間が戻ってきた）です。自分の自由な時間が無くなったがついに戻ってきたという意味です。
I have been studying non-stop but now my exams are over!
To do something ''non-stop'' means that you have continued to do it without stopping or without doing anything else. It is a very common expression in Ireland.
Examples:
1) I have been studying non-stop.
2) She has been talking non-stop since she arrived.
3) They have been messaging non-stop since they met.
4) I wish I had some interesting news but I have been studying non-stop for the past month!
「non-stop」は、ノンストップで（他のことは何もしないで）やり続けていることを表します。アイルランドではとても一般的な表現です。
【例文】
1) I have been studying non-stop.
（ノンストップで勉強しています）
2) She has been talking non-stop since she arrived.
（彼女は到着してからノンストップで喋り続けています）
3) They have been messaging non-stop since they met.
（彼らは出会ってからずっと絶え間なくメールでやり取りしています）
4) I wish I had some interesting news but I have been studying non-stop for the past month!
（何か面白いお知らせがあればと思うけど、ここ一カ月勉強しかしてない）
アメリカ合衆国 
イギリス 
アイルランド 
