I don't know...a venial sin is pretty minor....did Jesus commit a venial sin when He angrily threw the money changers out of the temple???...Did He commit a sin of any kind when He did not honor His mother and father and stayed behind in Jerusalem???...Luckily I'm not the judge!!
You are in deep trouble.
More than you realize.
FAR more than you realize, if you even think of questioning if Jesus sinned.
Anyone who has the slightest inkling of Scripture knows the answer to that one without even hesitating.
Luckily you're not the Magesterium either. I find it ironic how you show no compunction when asserting "all Protestants are wrong" - never taking the time to explain which beliefs are wrong - yet you contradict an ancient basic tenet of the Christian faith which is that Jesus Christ was without sin - of any kind. Had He committed even what you call a "minor" sin, He would not only have been disqualified as the substitutionary atonement for the sins of the world but He could NOT be God incarnate.
The RC distinction of "mortal" vs. "venial" sins is in conflict with Scripture in many places. James says, whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it. (James 2:10) Even Mary, because she is NOT God incarnate, is counted with the "all have sinned and fall short of the glory of God" (Rom. 3:23) and "If we say that we have no sin, we deceive ourselves, and the truth is not in us. (1 John 1:8)
ALL sin is mortal because even the smallest sin is serious enough to convict us of being sinners and deserving of eternal punishment. It is why Jesus came to earth, in the likeness of sinful man, lived a perfect and sinless life and died on the cross to make propitiation for our sins. It is through Jesus Christ, and Him alone, that anyone has a chance of redemption.
James 2:10 For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.
Hmmmmm!