Psalm 119 is Davids Prayer.
It is abundantly clear.
The Lord Jesus didn't go astray. This is purely your imagination. Its a fanciful thought but it misses the mark.
there are 2 places where the english word astray occurs in Psalm 119 in the KJV. the first is verse 67 and is the Hebrew word shagag H7683. it means to be unaware in the sense He is using it. the verse reads in the KJV as
Before I was afflicted I went astray: but now have I kept Thy Word.
a more accurate translation is:
before i was afflicted I was unaware, but I have kept Thy Word.
So actually He is saying He learned through what He suffered for us, and kept His Father's Word in doing so. that is completely in agreement with what Hebrews 5:7-9 says.
Who in the days of His flesh, when He had offered up prayers and supplications with strong crying and tears unto Him that was able to save Him from death, and was heard in that He feared; Though He were a Son, yet learned He obedience by the things which He suffered; And being made perfect, He became the Author of eternal salvation unto all them that obey Him;
He learned obedience through the things He suffered. He was made perfect through what He learned from the affliction and death He endured to save us in obedience to His Father and the law. That is what verse 67 is about.
will work on the other verse in awhile.