What was Judas greatest mistake?

What was Judas greatest mistake?
Was it?

No, his greatest mistake was that he couldn’t forgive himself.  Jesus was willing to forgive him as He had said we should forgive seven times seventy.
Unforgiveness it’s like a poison that consumes people from within and it’s worse when people cannot forgive themselves for whatever they have done or lost.

Learn from Jesus:
Pray for those who hate you.
Look at the good side of people.
Love one another.

Bearing with one another
My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous. And He Himself is the propitiation for our sins, and not for ours only but also for the whole world. (1 John 2:1-2)