Conclusion:
It is clear from what Allah Almighty Said in the Noble Quran and what Prophet Muhammad peace be upon him said in his Hadiths (Sayings) that the time in Hell is limited and the time in Paradise is infinite. Even though Allah Almighty used the word "forever" when He talked about the time in Hell and Heaven, He made it clear that the word "forever" is limited for Hell and is infinite for Heaven. Allah Almighty promised a never-ending Paradise to the Believers, but He never promised a never-ending punishment for anyone in the Noble Quran. In fact, in Noble Verse 7:40, Allah Almighty promised to open the Gates of Paradise to the disbelievers when they see a Holy Miracle happen.
We must also know that Allah Almighty's 100 levels of Mercy are plenty enough for us to eventually win Paradise. Those 100 Levels of Mercy from Allah Almighty are what will cause Allah Almighty's Holy Foot to ultimately be the only feeder to Hell's hunger and need to burn.
Praise to Allah Almighty who is so Merciful and Loving that He will fill up Hell with His Holy Foot to prevent it from needing and constantly crying out to Him to feed it with bad creations.
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